how to tell which of these is two tailed, one tailed: different, more likely, fewer, etc.
(not understanding the hypothesis tests)
stats help, very confused.
It is based on symbol present in alternate hypothesis H1.
< symbol implies left tailed (fewer)
> symbol implies right tailed (more likely)
"not equal" symbol implies two tailed (different)
how to tell which of these is two tailed, one tailed: different, more likely, fewer, etc....
Compared to a two-tailed hypothesis test, a one-tailed test is more likely to detect a: Group of answer choices true null hypothesis in the direction of concern false null hypothesis in the direction of concern false null hypothesis true null hypothesis
b. Is it one tailed or two tailed? Why is it one tailed or two tailed? c. d. Conclusion (statistics) e. Conclusion (in words, which hypothesis was supported?) (Movies tab on the Excel worksheet). You are a sociologist studying social behaviors during movies. You are interested in the number of bathroom breaks during movies as it relates to anxiety. You believe that the subject (type) of the movie impacts the number of bathroom breaks. Please test this hypothesis with a...
Considering the differences between a one-tailed and two-tailed independent samples t-test, using the same data set, which of the following is NOT true: A. the calculated t statistic will be the same for both B. an F-test of variances is required in both cases C. the d.f. will be the same for both tests D. we should select different values for these tests
8. Researchers tell you that, on average, people have 200 or fewer friends on Facebook. However, you believe that Facebook users, in fact, have more than 200 friends. You can set your hypotheses as: H0: Average number of friends ≤ 200 What will be the alternate hypothesis H1? 9. A statistics professor wants to know if her section’s grade average is different than that of other sections of the course. The average for all other sections is 75. To help...
Hypothesis Problems For the following hypothesis tests: a. State the null (Ho) and alternative (Hi) hypotheses b. State the type of test (right-tailed, left-tailed, or two-tailed) c. State the multiplier for an a (level of significance) of .05. The Chamber of Commerce states that only 15% of Boston tourists stay more than 2 days. A new chamber employee feels that the percentage staying more than 2 days is greater than 15%, and plans to sample a set of tourists to...
Which of the following is a two-tailed hypothesis? Select one: a. A marketing campaign will affect sales. b. A marketing campaign will increase sales. c. A marketing campaign will decrease sales. d. All of the above In a study, the expected mean of the sample receiving Treatment A is 356. Under the null hypothesis, what is the expected mean of the sample receiving Treatment B? Select one: a. There is not enough information to tell b. 178 c. 356 d....
For conducting a two-tailed hypothesis test with a certain data set, using the smaller of n - 1 and n-1 for the degrees of freedom results in df = 11, and the corresponding crtical values arts +2.201. Using the formula for the exact degrees of freedom results in df = 19.063, and the corresponding critical values are+2093. How is using the critical values of t2 201 more conservative than using the critical values of t2 0937 Choose the correct answer...
please help with both, thank you very much! 1) Classify the hypothesis test as lower-tailed, upper-tailed, or two-sided. A health insurer has determined that the "reasonable and customary" fee for a certain medical procedure is $1200. They suspect that the average fee charged by one particular clinic for this procedure is higher than $1200. The insurer wants to perform a hypothesis test to determine whether their suspicion is correct. Lower-tailed Upper-tailed Two-sided 2) A report states that 56% of homes...
To identify the correct Z(critical), it is important to determine whether the hypothesis test is one-tailed or two-tailed. The decision between a one- and two-tailed hypothesis is based on the researcher's expectations about the population from which the sample was selected. Many people believe that millennials are having more sex than people during the sexual revolution. You wonder whether the cohort currently in their mid-20s have had more sexual partners than older generations. Assume that the the average number of...
Choose one microbial industrial process (food/antibiotic production, etc.), tell me how it is done and what organism(s) participate in the manufacturing process?