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need help with this three question. (1) A. State the hypotheses and identify the claim: An...

need help with this three question.


(1) A. State the hypotheses and identify the claim: An amusement park says that the mean daily attendance at the park is more than 14,000 people. Also, is it left-tailed, right-tailed, or two-tailed?

B. State the hypotheses and identify the claim: Uber claims that the mean travel time from the MSP airport to the Mall of America is 8 minutes. Also, is it left-tailed, right-tailed, or two-tailed?


(2) A. Given a left-tailed test with test statistic ? = −1.55 and ? = 0.05, find the ? − ????? and determine if we reject or fail to reject ?0. Say why.
B. If we have a left-tailed z-test with ? = 0.10, find the rejection region.   
(3) Find the degrees of freedom, critical value(s) and rejection region(s) for the t-test given the information:

a) Right-tailed test, ? = 0.05,? = 23
b) Two-tailed test, ? = 0.01,? = 32

math   Statistics-And-Probability   
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