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We are interested in relationship satisfaction of young adults before and after they go off to college/university which separates them from their sweat-heart. We collect a sample of young adults which are about to be separated from their significant other by going to college and have them rate their satisfaction with the relationship. Then, after they have spent the first semester at colleges/universities (away from their significant other), they again rate their relationship satisfaction. Is there a difference?
PERSON
TIME 1
TIME 2
A
34
30
B
41
43
C
36
40
D
44
E
28
19
Are there differences in satisfaction with Intake process of clients who admit with mental health problems, substance abuse problems, or both.
A researcher is conducting proportionate stratified random sampling with a sample size of 250. Approximately how many people should be sampled from each stratum?
She randomly samples 67 CFOs and finds that 40 of them get their money news from newspapers. Does the test show enough evidence to reject the findings of Robert Half International? Use a = .05.
Can the company conclude that the mean kilo of product treated in one hour by this machine is more than 15,000? Use a 5% level of significance.
high school seniors with strong academic records apply to the nations most selective colleges in greater numbers each
suppose that a random sample of 100 public owner controlled companies in new zealand is found to give a mean audit
Estimated population variance of 2 hours; for University Y, M = 4, S² =1.5 ; and for University Z, M=6, S² = 2.5. What should you conclude? Use the .05 level. Use the steps of hypothesis testing.
the u.s. energy department states that 60 of all u.s. households have ceiling fans. in addition 29 of all u.s.
BRIEF DESCRIPTION OF THE R CODES NEEDED TO IMPLETEMENT THE METHOD:1- bootstrap 2-cross-validation 3-subset selection methods 4-ridge regression
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
positive correlation between CEO salary and the Stock Price, and therefore, for the good sake of the company's stock value, his salary should be increased. Do you agree with his argument? Explain why or why not.
in a recent study of 44 eighth graders the mean number of hours per week that they watched television was 19.5 with a
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