# (Answered) MATH399N Week 7 Assignment: Developing Hypothesis for Mean and Understanding Possible Conclusions The following cont

Question

If a hypothesis test were to be performed, in which of the following contexts would a t-test be appropriate?

Question

For which of the following is a t-test appropriate for performing a hypothesis test?

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Question

If a hypothesis test were to be performed, in which of the following contexts would a t-test be appropriate?

Question

According to a survey, the average American person watches TV for 3 hours per week. To test if the amount of TV in New York City is less than the national average, a researcher decides to do a hypothesis test, at a 10% significance level. She surveys 26 New Yorkers randomly and asks them about their amount of TV each week, on average. From the data, the sample mean time is 2.5 hours per week, and the sample standard deviation (s) is 1.1 hours.

• H0: μ≥3; Ha: μ<3.
• α=0.1(significance level)

What is the test statistic (t-value) of this one-mean hypothesis test (with σ unknown)?