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Chapter 10: Q. 6 (page 596)

According to a television commercial, 80%of dentists agree that Ultrafresh toothpaste is the best on the market.

Indicate if the hypothesis test is for :-

a. independent group means, population standard deviations, and/or variances known

b. independent group means, population standard deviations, and/or variances unknown

c. matched or paired samples

d. single mean

e. two proportions

f. single proportion

Short Answer

Expert verified

The hypothesis test is for single proportions.

Step by step solution

01

Given information

Here,80% of dentists agree that Ultrafresh toothpaste is the best on the market.

02

Calculation

A TV commercial says 80%of dentists agree Ultrafresh toothpastes are the best.

Assuming dentist proportion agreeing for the Ultrafresh tooth paste to be best as p.

The null and alternative hypothesis is obtained as :

H0:p=0Ha:p>0

This shows that this hypothesis test is for single proportions.

03

Final answer

The hypothesis test is for single proportions.

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Most popular questions from this chapter

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