Math  /  Data & Statistics

QuestionHomework /5:9(1,3,4,5)14(1,2)/ 5: 9(1,3,4,5) 14(1,2) Question 11 of 30 (1 point) I Question Attempt 1 of 3 Jonathan 06 6 07 9\checkmark 9 10 11 12 13 14 15 Español 16 17
Confidence in banks: A poll conducted asked a random sample of 1358 adults in the United States how much confidence they had in banks and other financial institutions. A total of 149 adults said that they had a great deal of confidence. An economist claims that less than 13%13 \% of U.S\mathrm{U} . \mathrm{S}. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both α=0.10\alpha=0.10 and α=0.01\alpha=0.01 levels of significance and the PP-value method with the TI-84 Plus calculator.
Part: 0/50 / 5
Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H0:H1:\begin{array}{l} H_{0}: \square \\ H_{1}: \square \end{array}
This hypothesis test is a (Choose one) \boldsymbol{\nabla} test. Skip Part Check Save For Later O 2024 MaGrow HIIILC. All Rights Resened

Studdy Solution
Compare the P-value to the significance levels α=0.10\alpha = 0.10 and α=0.01\alpha = 0.01.
- For α=0.10\alpha = 0.10: 0.0183<0.100.0183 < 0.10, reject H0H_0. - For α=0.01\alpha = 0.01: 0.0183>0.010.0183 > 0.01, do not reject H0H_0.
Conclusion: At α=0.10\alpha = 0.10, there is sufficient evidence to support the economist's claim that less than 13% of U.S. adults have a great deal of confidence in banks. However, at α=0.01\alpha = 0.01, there is not sufficient evidence to support the claim.

View Full Solution - Free
Was this helpful?

Studdy solves anything!

banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ParentsInfluencer programContactPolicyTerms
TwitterInstagramFacebookTikTokDiscord