Confidence in banks: A news poll conducted in 2012 asked a random sample of 1268 adults in the United States how much confidence they had in banks and other financial institutions. A total of 144 adults said that they had a great deal of confidence. An economist claims that less than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both the =α0.05 and =α0.10 levels of significance and the P -value method and Excel. Part 1 of 5 (a)State the appropriate null and alternate hypotheses. H0 : =p.11 H1 :
Confidence in banks: A news poll conducted in 2012 asked a random sample of 1268 adults in the United States how much confidence they had in banks and other financial institutions. A total of 144 adults said that they had a great deal of confidence. An economist claims that less than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both the =α0.05 and =α0.10 levels of significance and the P -value method and Excel. Part 1 of 5 (a)State the appropriate null and alternate hypotheses. H0 : =p.11 H1 :
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 42PFA
Related questions
Question
Confidence in banks: A news poll conducted in
2012
asked a random sample of
1268
adults in the United States how much confidence they had in banks and other financial institutions. A total of
144
adults said that they had a great deal of confidence. An economist claims that less than
11%
of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both the
=α0.05
and
=α0.10
levels of significance and the
P
-value method and Excel.
Part 1 of 5
(a)State the appropriate null and alternate hypotheses.
H0
=p.11
H1
<p.11
Alternate Answer:
H0
:
=p0.11
H1
:
<p0.11
This hypothesis test is a left-tailed test.
Part: 1 / 5
1 of 5 Parts Complete
Part 2 of 5
(b)Compute the test statistic. Do not round intermediate steps. Round the answer to two decimal places.
z
=
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