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Chapter 9: Q.7 (page 546)

A change is made that should improve student satisfaction with the parking situation at a local high school. Right now, 37% of students approve of the parking that鈥檚 provided. The null hypothesis H0:p>0.37is tested against the alternativeHa:p=0.37.

Short Answer

Expert verified

The population value is 0.37 as per null hypothesis and population value more than0.37 as per alternative hypothesis, the problem is incorrect according to the hypotheses.

Step by step solution

01

introduction

Given,

37% of students approve of the parking that鈥檚 provided and the hypotheses are tested against one another.

02

explanation

calculating the hypotheses,

population value =0.37as per null hypothesis

鈬�H0:p=0.37

population value more than0.37as per alternative hypothesis

鈬�Ha:p>0.37

The population value =0.37as per null hypothesis and population value more than0.37as per alternative hypothesis, the problem is incorrect according to the hypotheses.

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Most popular questions from this chapter

When asked to explain the meaning of the P-value in Exercise 13, a student

says, 鈥淭his means there is only probability 0.01 that the null hypothesis is true.鈥� Explain clearly why the student鈥檚 explanation is wrong.

For the study of Jordanian children in Exercise 4, the sample mean hemoglobin level was 11.3 g/dl and the sample standard deviation was 1.6 g/dl. A significance test yields a P-value of 0.0016.

(a) Interpret the P-value in context.

(b) What conclusion would you make if 伪= 0.05? 伪= 0.01? Justify your answer.

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Pressing pills A drug manufacturer forms tablets by compressing a granular material that contains the active ingredient and various fillers. The hardness of a sample from each batch of tablets produced is measured to control the compression process. The target value for the hardness is 渭=11.5. The hardness data for a random sample of 20tablets are

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