TB MC Qu. 15-100 (Algo) It is claimed that in a bushel of peaches, fewer than... It is claimed that in a bushel of peaches, fewer than 10% are defective. A sample of 400 peaches is examined and 72 are found to be defective. What is the z-test statistic? Multiple Choice +5.333 +0.180 +0.333 -5.311
TB MC Qu. 15-100 (Algo) It is claimed that in a bushel of peaches, fewer than... It is claimed that in a bushel of peaches, fewer than 10% are defective. A sample of 400 peaches is examined and 72 are found to be defective. What is the z-test statistic? Multiple Choice +5.333 +0.180 +0.333 -5.311
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Question:**
It is claimed that in a bushel of peaches, fewer than 10% are defective. A sample of 400 peaches is examined and 72 are found to be defective. What is the z-test statistic?
**Multiple Choice Options:**
- +5.333
- +0.180
- +0.333
- −5.311
**Explanation:**
This question involves calculating the z-test statistic for a proportion. The claim is that less than 10% of the peaches are defective. From the sample of 400 peaches, we find that 72 are defective, which will help us determine the sample proportion and compare it to the claimed proportion using the z-test formula for proportions.
Transcribed Image Text:**Title: Analyzing Nielsen Ratings for CBS News**
**Content:**
Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 55% of the viewing audience in the area. In a survey of 100 viewers, 46% indicated that they watch the late evening news on this local CBS station. What is the test statistic?
**Multiple Choice Options:**
- 1.81
- -2.01
- -1.81
- 2.01
**Explanation:**
This problem involves hypothesis testing to determine if the observed proportion of viewers matches the claimed proportion. The test statistic is calculated to compare the survey results with the claimed audience reach. Select the correct test statistic from the options provided.
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