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From a recent survey, the 90% confidence interval estimate of the proportion of students who have healthy eating habits is: 0.38 < n < 0.41 Determine the number of students that were sampled in the survey. A.

From a recent survey, the 90% confidence interval estimate of the proportion of students who have healthy eating habits is: 0.38 < n < 0.41 Determine the number of students that were sampled in the survey. A.

MATLAB: An Introduction with Applications
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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From a recent survey, the 90% confidence interval estimate of the proportion of students who have healthy eating habits is: 0.38 < T < 0.41 Determine the number of students that were sampled in the survey. А. В. A sample of accident records from the Traffic Department was retrieved, and the information is summarized below: Size of Car Compact | Medium Large Total Minor 80 55 45 180 Major 30 35 55 120 Total 110 90 100 300 Perform a test to determine whether there is any association between the severity of involved. Use a = 0.01. accidents and the size of car A distributor of a hair product claimed that consumers use less than 75 ml of its product weekly. To test this claim, a random sample of 18 consumers of the hair product was asked how much (in ml) they used per week. Their responses are summarized as follows: С. Ex = 1314 and Σχ? = 96072 where x is the weekly usage of each consumer (i) Calculate the unbiased point estimates of the population mean and standard deviation. (ii) At a = 0.025, can we infer that the distributor is correct?
Transcribed Image Text:From a recent survey, the 90% confidence interval estimate of the proportion of students who have healthy eating habits is: 0.38 < T < 0.41 Determine the number of students that were sampled in the survey. А. В. A sample of accident records from the Traffic Department was retrieved, and the information is summarized below: Size of Car Compact | Medium Large Total Minor 80 55 45 180 Major 30 35 55 120 Total 110 90 100 300 Perform a test to determine whether there is any association between the severity of involved. Use a = 0.01. accidents and the size of car A distributor of a hair product claimed that consumers use less than 75 ml of its product weekly. To test this claim, a random sample of 18 consumers of the hair product was asked how much (in ml) they used per week. Their responses are summarized as follows: С. Ex = 1314 and Σχ? = 96072 where x is the weekly usage of each consumer (i) Calculate the unbiased point estimates of the population mean and standard deviation. (ii) At a = 0.025, can we infer that the distributor is correct?
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