According to the American Time Use Survey, the mean number of hours each day Americans age 15 and older spend eating and drinking is 1.22. A researcher wanted to know if Americans age 15 to 19 spent less time eating and drinking. After surveying 50 Americans age 15 to 19 and running the appropriate hypothesis test, she obtained a P-value of 0.0329. State the null and alternative hypothesis this researcher used and interpret the P-value.
Answer to relevant QuestionsExplain the procedure for testing a hypothesis using the Classical Approach. What is the criterion for judging whether to reject the null hypothesis? The outside diameter of a manufactured part must be 1.3825 inches, according to customer speciﬁcations. The data shown represent a random sample of 10 parts. Use a 95% conﬁdence interval to judge whether the part has ...Federal law requires that a jar of peanut butter that is labeled as containing 32 ounces must contain at least 32 ounces. A consumer advocate feels that a certain peanut butter manufacturer is shorting customers by ...According to the Centers for Disease Control, 15.2% of American adults experience migraine headaches. Stress is a major contributor to the frequency and intensity of headaches. A massage therapist feels that she has a ...H0: p = 0.3 versus H1: p > 0.3 n = 200; x = 75; α = 0.05 Test the hypothesis using (a) The classical approach and (b) The P-value approach. Be sure to verify the requirements of the test.
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