Mathematics, 25.10.2019 17:43, kathleen1010
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)? round your final answer to two decimal places. provide your answer below:
Answers: 2
of the alternative hypothesis is less than the established in the null, this is a left-tailed test.
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According to a survey, the average american person watches tv for 3 hours per week. to test if the a...
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