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Psychological Statistics is the application of statistical methods in the field of psychology for the analysis of data and interpretation of results.
The null hypothesis means ______________.
The range is a measure of where the data is ranked.
A one sample t test is ___________________.
The strength of a correlation is determined by _________________.
A researcher is studying the effect of mefenamic acid on headache disappearance in young female adults. Choose the correct hypothesis.
The probability of a Type 1 error is denoted by ________________.
The graph below shows that:
A student answered 77 out of 100 in a test. What percentage did he answer incorrectly?
Compute for the percentage and proportion for each. Type the answer on the space provided. 175 employees out of 1,078
To reject the null hypothesis, the p value must greater than α.
If r2 = 0.43, it means that _________________.
Compute for the percentage and proportion. Type the answer on the space provided. 6,874 pens out of 10,000
It is important to note that multivariate statistics can well complement descriptive statistics when presenting the results.
A distribution is a ________________.
The null hypothesis in comparing two populations would postulate that the two populations would have no difference.
What is the median of the given data?
When the researcher does not reject the null hypothesis when in fact it is false this is caleed a ________________.
The alternative hypothesis is the educated outcome guess of a researcher.
Compute for the percentage and proportion. Type the answer on the space provided. 82 mugs out of 165
The t Test is characteristically used to compare ______________.
A one sample t test is ____________________.
The degrees of freedom for a sample size of 501 is _________________.
The z score is the distance from the ____________________.
Descriptive statistics is a direct interpretation of the data and may not be stretched to further conclude generalizations about the population.
Use the data set given below to solve for the Mean Absolute Deviation. Data Set: 76 80 56 63 45 88 75 89 86 58
When making use of the same subjects testing the before and after effects, we would need data to be___________________.
What is the mode of the following numbers 10, 10, 10, 11, 11, 12, 13?
Comparing two populations mean that you can get data from any two sample sizes from any population.
A two proportion z test always yields a two tailed graph.
In the equation of the best fitting line, Y = mx + b, m refers to the ________________.
The probability of a Type 1 error is denoted by ___________.
Smaller samples give smaller variability measures.
The degrees of freedom is denoted by n-10.
Comparing 2 population proportions starts with having ________________ data that are taken from 2 separate unique groups.
An identified representative group or subset of the whole is called a ______________.
The t test has various thresholds/significance levels.
The p value gives you the _____________________.
Descriptive statistics all except ________________.
There are two types of statistical hypotheses normally crafted in research called the ______________.
A chi square test does not measure the __________________.
The mean absolute deviation is also known as the ______________________.
The range is computed by _________.
What is the mode of the given data?
Which of the following is not useful in doing an ANOVA?
The mode is the number that is most frequently seen in a data set.
The mu is a greek symbol for ________________.
What is the median for the given data?
675 cars were seen to have defects from the factory production last Wednesday. The total production for that day was 921. What is the percentage of cars with defects?
______________________ is the method by which survey respondents are chosen without bias and with equal ability to be participants in the study.
The mean is the best value to describe an entire set of data.
Hypothesis testing is done to _______________.
A pooled variances test is used to know the variance of two groups that are assumed to be alike.
Gender is an example of nominal data.
Independent t test is used when there are different subjects in the study.
Which scatter plot of Gender vs English Grade best represents the data above?
An alternative hypothesis for 2 independent population means is __________.
A group of researchers tested the before and after effects of social media on a group of 50 teenagers. To test the hypothesis , we use the data _______________.
Use the data set given below to solve for the Variance. Data Set: 76 80 56 63 45 88 75 89 86 58
Type 2 Error is when the researcher ________________.
When the Pearson and Spearman correlation values equals a +1, it means ______________.
A student who got a score of 9 out of 10 in a test is an example of inferential statistics.
In ANOVA, treatment is another word for ________________.
Use the data set given below to answer the question. Data Set: 1111 Standard Deviation: 209 Mean: 1026 p(Z > a) = 1 - p(Z < a) equals ____________
What is the mean for the given data?
What is the range of the following numbers 10, 10, 10, 11, 11, 12, 13?
The variance is computed by getting the square of the ___________________.
When comparing two populations, it is assumed that both have normal distributions.
The Chi Square Test of Independence shows ____________________.
Depending on the alternative hypothesis, the answer when comparing means can be a one tailed graph.
What is the median of the following numbers 10, 10, 10, 11, 11, 12, 13?
A one tailed t test finds out if ________________.
The two statistical methods are best combined in a research to give an accurate picture and generalization of the problem at hand.
Significance levels of a research are always at a 90%, 95% and 99% level.
The statistical value of p should be greater than the significance level for you to reject the null hypothesis.
Random sampling is getting qualified research respondents with each being chosen with the same probability.
To compare populations, data must come from random samples.
If the Spearman coefficient is equal to 1, it means that ______________.
An alternative hypothesis means _______________.
IINSTRUCTION: Customer service centers are being improved in the country. With this effort, a local firm recorded the number of minutes it takes for call center agents to resolve a complaint. Below is the data. Determine the mode.
A regression cannot predict the outcome of a study given the best fitting line.
Depending on the null hypothesis, the answer when comparing means can be a one tailed graph.
The area of the normal curve is equal to ________________.
A 2 independent samples proportion test is also called a ____________________.
The Chi Square Goodness of Fit shows ____________________.
The p value of 0.04 means that there is a 4% chance of it to likely happen.
Descriptive statistics is important because it describes the data in a simpler interpretation of the data.
Which bar graph of Gender vs Total Participants per Gender best represents the data above.
What should be included in reporting ANOVA?
The class for Statistics has a population of 35 students. The passing rate for the exam is at 50%. In the last exam, 23 students got 8 and above out of the total score of 15. All the rest got 6 and below. What is the percentage of the population that passed the exam?
Select one:
A t-test with two samples is most commonly used when there are small sample sizes used in the study.
ANOVA calculates for the __________________.
It is important to also report and know measures of dispersion because it ___________________ .
The researcher is trying to find out the effects of stress on heart beats per minute. The dependent variable is ____________.
Qualitative variables are assigned names to certain objects or characteristics of a study.
A sample contains all the data of the group that a researcher is studying.
A researcher is studying the effect of energy drinks on sports performance in young male adults. Choose the correct hypothesis.
The population is a representative group of the whole.
The normal curve is characteristically ______________.
Out of 1050 students, 544 students passed the exam. What is the percentage of passing?
The mean of 15,17,19 and 20 is 17.5.
What is the mean of the following numbers 10, 10, 10, 11, 11, 12, 13?
For the hypothesis , the researcher randomly sampled 40 participants from the first group and 20 participants from the second group. What is the degrees of freedom?
Statistics is important as it gives an objective way of summarizing and studying data.
The sample size is taking all members of the group being studied and getting data from them.
This method of statistics infers or generalizes obtained data from the sample size to the population.
Quantitative statistics are always of numerical value while qualitative statistics are always of an assigned label or name.
A research problem does not always need to have a null hypothesis because it is mostly rejected.
Rejecting the null hypothesis means that there is a difference in the variables of the study.
A matched pairs t test ________________.
The alternative hypothesis means that there is no difference between two sample groups.
In a research problem, there are always two kids of hypothesis - the null hypothesis and the altered hypothesis.
A variable is an identified characteristic in a research that the researcher wants to take a closer look at.
What is the mode for the given data?
To test interaction effects, the researcher uses ___________________.
Descriptive statistics on the other hand is a/an __________________ interpretation from the data gathered.
State the null hypothesis of the problem below. Two groups of honor students are being studied. The researcher is trying to determine if the method of memorization is effective in getting good grades versus a group who does hands on practice.
The median is easily swayed by big and small values in the data set.
The graph below shows a:
Out of 1040 students, 654 students passed the exam. What is the percentage of passing?
INSTRUCTION: Determine the median of the table below:
INSTRUCTION: Determine the mode from the table below:
What is a property of a test statistic?
The mode is a measure of dispersion.
If the z score is 4.12, what is the value of the z score to make is a normal distribution?
The greater the standard deviation number, the ________________ the dispersion.
A percentage and proportion is related to each other such that __________.
The standard score is the same as the ______________________.
A student for a score of 27 out of 30 in an exam. This means that the student answered 90% of the questions correctly.
When making use of the same subjects testing the before and after effects, we would need to employ the ___________________.
Including graphs in descriptive statistics complicates the interpretation of the data at hand.
Compute for the percentage and proportion. Type the answer on the space provided. 3 balls out of 10
Compute for the percentage and proportion. Type the answer on the space provided. 65 boxes out of 120
When hypothesis testing the means of 2 independent populations, our data should be _______________.
A regression line may be plotted to show where predicted values may fall in a graph based on the independent variable. It is also called a _________________________.
In testing means of populations, which of the following data is required?
Use the data set to solve for the range. Data Set: 76 80 56 63 45 88 75 89 86 58
All are properties of a regression line except ____________________.
A researcher may opt to test the whole population to get better results in the study.
This method of statistics is a direct interpretation of the obtained data.
What is the percentage of the following students? Student A 50/65 Student B 32/65
Descriptive statistics are used to infer generalizations to the whole population.
The Chi Square Test of Homogeneity shows ____________________.
The whole group of the study which the sample reflects is called the ________________.
What is the proportion equivalent proportion if a factory worker accomplishes 82% of his work?
A type 2 error is the probability of accepting a true alternative hypothesis.
Measures of central tendency revolve around three areas namely the range, mean and median.
Studying the before and after effects is also known as ____________________.
Univariate statistics can deal with up to two variables being studied.
Which line graph of Age and Gender best represents the data above?
A regression analysis shows ____________________.
What is the percentage of the following students? Student A 60/65 Student B 45/65
In a normal distribution the pre-calculated area of a z score can be found in the __________________.
R squared is a measure of __________________.
When doing random sampling, it means that one person may be selected twice in a study.
Significance levels in a research study normally fall in these values.
The degrees of freedom for a sample size of 50 for the first group and 49 for the second group is _________________.
What symbol is used to represent Chi square?
A negative one tailed graph would have the two ends of the normal curve graph shaded.
What does ANOVA calculate for?
Use the data set given to answer the following question. From the Z Table, p(z>a) = __________?
A group of researchers tested the before and after effects of television on a group of 25 children. To test the hypothesis we use the data _______________.
A t test is used to compare 3 groups and their mean differences.
The median of 15,17,19 and 20 is 18.
A correlation tells you the relationship or association of two variables being studied.
Which of the following is different from all the others?
What is the mean of the given data?
For the hypothesis the researcher randomly sampled 19 participants from the first group and 10 participants from the second group. What is the degrees of freedom?
The z score is obtained so that __________________.
Inferential Statistics infers or generalizes data from _______________ to the ____________________.
INSTRUCTION: Customer service centers are being improved in the country. With this effort, a local firm recorded the number of minutes it takes for call center agents to resolve a complaint. Below is the data. Determine the median.
The alternative hypothesis for a chi square is __________________.
Which is not a Chi Square Test?
Numbers represent quantitative variables always.
The mean of the sample or population is highly dependent on N.
The population is the representative sample of an identified group.
For the hypothesis , the researcher randomly sampled 19 participants from the first group and 10 participants from the second group. What is the degrees of freedom?
The average or the mean is the midpoint of a data set.
When reporting results, it is enough to rely on measures of central tendency to accept the alternative hypothesis.
If the p value is lesser than 0.05, it means that _________.
A dependent means t test is also known as ____________________.
When the researcher does not reject the null hypothesis when in fact it is false this is called a ________________.
Statistics is used to prove the hypothesis of a research to be right or wrong.
The z score table _________________.
The hypothesis of a study must always be formed at the beginning of the research.
Quantitative data is represented by ________________.
A teacher in statistics gave out practice problems for students to answer at home. Each student spent some minutes answering these as recorded below. Determine the mode.
In descriptive statistics, the main objective is to ____________.
A z-score is the same as the p value.
Which of the following is false for an alternative hypothesis?
Use the data set given below to solve for the Standard Deviation. Data Set: 76 80 56 63 45 88 75 89 86 58
A chi square test is done with ______________ data.
In a univariate study, a researcher looks at _____ variable/s in different scenarios
A type 2 error occurs when the null hypothesis is rejected when it is in fact true.
If r2 = -0.92, it means that _________________.
The null hypothesis means is stated as _____________.
A p value of 0.07 has a stronger ability to debunk the null hypothesis than a p value of 0.03.
When comparing two population means, the = sign always appears in the __________________.
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