7. What is the lower limit of the 99% confidence interval for a population variance when s=3 and n = 20?8. 50 randomly selected statistics students were asked if they actually read their statistics textbook.35 responded that they do not read the textbook. What is the value of p for this sample?9. A certain randomly selected sample of 125 registered voters showed that 20% of them voted in themost recent school board election. How many of these voters actually voted in that election? Construct a95% confidence interval for the proportion of registered voters who voted in the most recent school boardelection.I10. We want to construct a confidence interval for a population mean. We want to be 95% confident with amargin of error of 1.5. We know that o= 10.5. How large should our sample be?11. We want to construct a confidence interval for a population proportion. We want to be 99% confident with amargin of error of 0.03. We do not know an estimate for p. How large should our sample be?7-10Copyright © 2018 Pearson Education, Inc.

Standard deviation s=3 Sample size n =20 99% confidence level. NOTE:- According to bartleby…

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What is the lower limit of the 99% confidence interval for a population variance when s=3 and n=20?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

7. What is the lower limit of the 99% confidence interval for a population variance when s=3 and n = 20?
8. 50 randomly selected statistics students were asked if they actually read their statistics textbook.
35 responded that they do not read the textbook. What is the value of p for this sample?
9. A certain randomly selected sample of 125 registered voters showed that 20% of them voted in the
most recent school board election. How many of these voters actually voted in that election? Construct a
95% confidence interval for the proportion of registered voters who voted in the most recent school board
election.
I
10. We want to construct a confidence interval for a population mean. We want to be 95% confident with a
margin of error of 1.5. We know that o= 10.5. How large should our sample be?
11. We want to construct a confidence interval for a population proportion. We want to be 99% confident with a
margin of error of 0.03. We do not know an estimate for p. How large should our sample be?
7-10
Copyright © 2018 Pearson Education, Inc.

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