QUESTIONSA Hi-Tech company has introduced a new flash disk. Some dealers and customers have complained that some of the new disks are defective. In order to investigatethis the company randomly tested n disks and found that 6.65% were defective. Find the appropriate sample size necessary to achieve a margin of error of 0.041 inorder to construct a 90% confidence interval for the proportion of all flash disks that are defective. Round your answer to the nearest integer (whole number).

Given that Sample proportion=0.0665 Margin of Error=0.041 90% confidence interval we have to find…

Answered: QUESTION B A Hi-Tech company has…

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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CorpPlus is a large corporation with many employees. You work for the human resources department of CorpPlus and want to estimate the population proportion of all employees who say the corporation is a great place to work. So, you will survey a random sample of 95 employees from CorpPlus and ask them whether they think the corporation is a great place to work. Follow the steps below to construct a 99% confidence interval for the population proportion of all employees who say the corporation is a great place to work. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results from the random sample. Take Sample Sample size: 0 Point estimate: 0 Critical value: 0 Compute 0.000 Says the corporation is a great place to work Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you…
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A newspaper article reported that 400 people in one state were surveyed and 70% were opposed to a recent court decision. The same article reported that a similar survey of 500 people in another state indicated opposition by only 40%. Construct a 95% confidence interval of the difference in population proportions based on the data.
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QUESTION 6 A Hi-Tech company has introduced a new flash disk. Some dealers and customers have complained that some of the new disks are defective. In order to investigate this the company randomly tested n disks and found that 7.38% were defective. Find the appropriate sample size necessary to achieve a margin of error of 0.043 in order to construct a 97% confidence interval for the proportion of all flash disks that are defective. Round your answer to the nearest integer (whole number).
It is widely believed that 19% of all students live in campus housing. You suspect that claim is not accurate. You take a sample of 150 students from the population and find that 39 of those students live in campus housing. The parts that I am having trouble with are: Assuming the null is true, how many standard errors is the sample proportion away from the null? Assuming the null is true, on average, how far would a sample proportion be from the expected population proportion? I know that the answer for each part is 2.19 and 0.0320. I am struggling to remember the steps to get to the answer.

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