What's wrong? Explain what is wrong with each of the following: (a) A student project used a confidence interval to describe the resulto in

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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8.23 What's wrong? Explain what is wrong with each of
the following:
(a) A student project used a confidence interval to
describe the results in a final report. The confidence level
was 115%.
(b) The margin of error for a confidence interval used
for an opinion poll takes into account the fact that
people who did not answer the poll questions may have
had different responses from those who did answer the
questions.
(c) If the P-value for a significance test is 0.50, we can
conclude that the null hypothesis has a 50% chance of
being true.
g
a
(
Transcribed Image Text:8.23 What's wrong? Explain what is wrong with each of the following: (a) A student project used a confidence interval to describe the results in a final report. The confidence level was 115%. (b) The margin of error for a confidence interval used for an opinion poll takes into account the fact that people who did not answer the poll questions may have had different responses from those who did answer the questions. (c) If the P-value for a significance test is 0.50, we can conclude that the null hypothesis has a 50% chance of being true. g a (
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