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5. A growing concern in the US is the number of teenagers who have part-time jobs while they attend highschool. A sample of 65 15-year-olds showed on...

This question was created from STA-103-SS1-HW-6.pdf https://www.coursehero.com/file/32276578/STA-103-SS1-HW-6pdf/

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I need help with question 5 part a-e. (please show your work)

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5. A growing concern in the US is the number of teenagers
who have part—time jobs while they attend highschool. A
sample of 65 15-year-o1ds showed on average they worked
5.75 hours per week in a part time job, with a population
standard deviation of 3.310 hours per week. A concerned
parent claims that teenagers work more than 5 hours a week on average. Assume o: = 0.05. (a) State the appropriate null and alternative hypothe—
ses. (b) Find the value of the test-statistic. (c) Find the range of the p—value. (d) State your decision and conclusion in terms of the
problem. (e) If we increased the sample size from 200 to 400 (and
all other values remained the same), would the test-
statistic increase or decrease? Explain.

Top Answer

a) Null and Alternative Hypotheses  H ​ 0 ​ ​ : μ = 5   H ​ a ​ ​ : μ > 5  b) Z... View the full answer

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