True or False? When performing a Mann-Whitney U test, one should always use the lower value of the calculated U values to compare to the critical U value while making the decision rule.
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True or False? When performing a Mann-Whitney U test, one should always use the lower value of the calculated U values to compare to the critical U value while making the decision rule.
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- When performing a Mann-Whitney U test, one should always use the higher value of the calculated U values to compare to the critical U value while making the decision rule. True or False?b) The test statistic value is: c) Using the Traditional method, the critical value is:Is achieving a basic skill level related to the location of the school? The results of a random sample of students by the location of school and the number of students achieving basic skill levels in three subjects is shown in the contingency table. At a=0.10, test the hypothesis that the variables are independent. 1. Find the critical value. 2. Calculate the test statistic
- Conduct a hypothesis test to evaluate if these data provide evidence of a difference between the proportions of truck drivers and non-transportation workers (the control group) who get less than 6 hours of sleep per day, i.e. are considered sleep deprived. The test statistic is: Z = The P-value isa. Why the ANOVA F-test for model utility is called the "global" test? b. Why would it make sense to call the hypothesis test as a marginal or partial test? c. If you are given the ANOVA table, will you be able to calculate R2 and R2a? d. Why R2a≤R2?What is the decision making for this hypothesis test? A is the positive critical value for this question, what is/are the possible critical region(s) for this hypothesis test? A. Greater than -A and smaller than A B. Greater than A or smaller than -A C. Greater than A D. None of the above E. Smaller than -A
- Is psychiatric history dependent on where the mother lives (country or city)? The test statistics for this hypothesis test are.... How to run t-test? which variable goes where? I attached images, is that correct and where to get the t statistic and p-value?t=? critical value=? reject/enough evidence/not enough evidence/fail=?b. Interpret the parameters of interest from the perspective of statistical significance: (hint: used p-value)c. What is your conclusion about the relationship between parameter of interests based on the empirical results?
- A researcher wanted to know whether exercise could alleviate depression. Using Kruskal-Wallis test, the researcher finds the calculated H is smaller than the critical value. What is the correct conclusion from the test result? a. Reject Ho. Exercise does not affect depression level. b. Accept Ho. Exercise does not affect depression level. c. Reject Ho. Exercise affect depression level. d. Ho cannot be rejected. Exercise does not affect depression level.A researcher would like to investigate whether or not there is a difference in IQ between Psychology and History majors. She gathers 16 students (8 whose major is Psychology, and 8 whose major is history) and has them all take an IQ test to test this hypothesis using an (alpha level of .01). Below are the data: Psych History 120 95 114 92 100 145 121 101 124 100 102 98 110 97 123 120 What is (are) the critical value(s)? Obtained Statistic? Use SPSS software to perform same analysis and confirm the results please.Test the claim that the proportion of men who own cats is smaller than 60% at the 0.01 significance level. Based on a sample of 300 people, 51% owned catsThe test statistic is: _______ (to 2 decimals)The critical value is: _______ (to 2 decimals)