e, But your final answers must be your own dlld clearly explain your steps. ugge

Question

e, But your final answers must be your own dlld clearly explain your steps. uggested Reading: Read Ch. 1 (pg. 7 to 33) and 5.3.2 (pg. 228 to 229) Videos: All videos for Chapter 1 found here https://ww. openintro.org/stat/videos php Problem Write Ups: I will be grading the following problems. Write them cleanly on a separate sheet of paper. (1) Barry Allen is told that the average person can run a mile in 12 minutes. Barry thinks the actual average is less than claimed. He plans to test this by selecting every 10th person in the gym at PCC and recording their mile time. (a) State the null and alternative hypotheses related to the claim. (b) What sampling technique did Barry Allen use? (c) Identify any potential biases in the sample technique used. (d) If Barry Allen really wanted to know the average mile time for all people, how could be realistically collect the data to do so? (2) Textbook: 1.13 (3) Textbook Also Turn In: These problems will be collected and graded on completion only. Topics in these problems may show up again in quizzes and exams! (1) From the book: 1.14, 1.20, 1.21, 1.22, 1.34

Explanation / Answer

Answer:

As per given data,

Let ,mu(u) be the run of average person

(A) Null hypothesis:

H_0:mu=12 v/s H_A:mu<12

(B) Every 10 th person is selected.

so,Systematic sampling is used.

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