When conducting a hypothesis test,which one of the following p-values would you feel most confident to reject thenull hypothesis? a.0.05 b.0.01 c.0.99 d.0.005 e.0.995

2. A weatherman stated a null hypothesis that during the month of September, the mean daily temperature of Boston was the same as the mean dailytemperature of New York. His alternative hypothesis was that mean temperatures in these two cities were different. He computed a p-value of 0.275. Using a confidence level of 90%, he should conclude: a.In September, Boston was colder than New York b.In September, New York was colder than Boston c.Reject the null hypothesis d.Fail to reject the null hypothesis e.None of the above. 3. A teacher assumed the average grade for a quiz was4.5. A sample of 20students took the test and the 95% confidenceinterval of the mean test grade was (4.75, 5.44). Based on this information, can we reject the teachers assumption? a.Yes b.No c.Not enough information provided

4.Which of the following descriptions of confidence intervals is correct? (Select all that apply)

a.If a 99% confidence interval contains 0, then the 95% confidence interval contains 0

b.If a 95% confidence interval contains 0, then the 99% confidence interval contains 0

c.If a 99% confidence interval contains 1, then the 95% confidence interval contains 1

d.If a 95% confidence interval contains 1, then the 99% confidence interval contains 1e.None of the above are correct about confidence intervals.

5. Imagine a researcher presented a null hypothesis that in a certain community, the average energy expenditure is 2,100 calories per day. Herandomly sampled 100 people in that particular community.He computed a t value using a two-tailed test statistic and the associated p-value was 0.08. Given a 90% confidence level, heshould conclude:

a.The average energy expenditureisgreaterthan 2,100 calories per day

b.The average energy expenditure isless than 2,100 calories per day

c.The average energy expenditure isnot equal to 2,100 calories per day

d.Failto reject the null hypothesis e.None of the above