A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at .05 significance. Round to the fourth Ho: P HA: P OF > How many successes were there? Test Statistic: P-value: .450 0.45✔ OF Did something significant happen? Significance Happened Select the Decision Rule: Reject the Null There is enough evidence to conclude that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people
who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple
random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at
.05 significance.
Round to the fourth
Ho: P
HA: P
How many successes were there?
Test Statistic:
=
४
.45
.45
P-value:
Did something significant happen? Significance Happened
Select the Decision Rule:
Reject the Null
There is
Oenough evidence to conclude
that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. ✓
Transcribed Image Text:A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at .05 significance. Round to the fourth Ho: P HA: P How many successes were there? Test Statistic: = ४ .45 .45 P-value: Did something significant happen? Significance Happened Select the Decision Rule: Reject the Null There is Oenough evidence to conclude that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. ✓
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