QUESTION 24A researcher wants to calculate a 95% confidence interval for the unknown true proportion of defective resistors off anassembly line. He takes a random sample of 500 resistors, and finds that 46 of them are defective. Find the margin oferror to construct the 95% confidence interval? Round your answer to four decimal places.

Answered: QUESTION 24 A researcher wants to…

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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QUESTION 14 A researcher wants to calculate a 95% confidence interval for the unknown true proportion of defective resistors off an assembly line. He takes a random sample of 201 resistors, and finds that 31 of them are defective. Find the margin of error to construct the 95% confidence interval? Round your answer to four decimal places.
Question 7 A newsgroup is interested in constructing a 95% confidence interval for the proportion of all Americans who are in favor of a new Green initiative. Of the 586 randomly selected Americans surveyed, 391 were in favor of the initiative. Round answers to 4 decimal places where possible. a. With 95% confidence the proportion of all Americans who favor the new Green initiative is between and b. If many groups of 586 randomly selected Americans were surveyed, then a different confidence interval would be produced from gach group. About percent of these confidence intervals will contain the true population proportion of Americans who favor the Green initiative and about percent will not contain the true population proportion.
Question 20 Wildlife biologists inspect 153 deer taken by hunters and find that 32 of them carry ticks that test positive for Lyme disease. For the correct 95% confidence interval for the population proportion, which of the following would be a valid conclusion? O a. We know for sure that the true proportion of Lyme disease carrying ticks is within the calculated interval O b. We know that 95% of deer carry ticks with Lyme disease O c. We are 95% confident that the true proportion of Lyme disease carrying ticks is 0.21? O d. We are 95% confident that the true proportion of deer that carry ticks with Lyme disease is within the calculated confidence interval «< Que A Moving to another question will save this response. dtv 20 吕口 F3 FS F7 FB F9 esc F2 F1 @ 2$ % & * 4 7 8. Q W E R T Y tab G K %#3
chapter 10 problem 16, I need help with the last part of this problem. thanks
question 21 You are interested in constructing a 90% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 412 randomly selected caterpillars observed, 53 lived to become butterflies. Round answers to 4 decimal places where possible. a. With 90% confidence the proportion of all caterpillars that lived to become a butterfly is between ? and .?
QUESTION 3 The GPAs of nursing students (p1) were compared to GPAs of student-athletes (p2) were compared. Of a sample of 400 randomly and independently selected nursing students, 75% were placed on honor roll. Of a sample of 100 athletes, 80% of the students were placed on honor roll. Calculated the UPPER bound of the 95% confidence interval for the two samples. Round to the nearest hundredth.
QUESTION 9 A random sample of 500 ZU students are surveyed to determine if they own a tablet. It was found that a 95% confidence interval of the true population proportion of ZU students who own tablets is (0.406, 0.494). Find the point estimator of the true population proportion of ZU students who own tablets. Round your answer to two decimal places.
#43
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Question 4 If n=31, (x-bar)=35, and s=10, find the margin of error at a 99% confidence level Give your answer to two decimal places.
Question 2 Part B
question 3

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