Many financial institutions are unwittingly training their online customers to take risks with their passwords and other sensitive acc information, leaving them more vulnerable to fraud. Researchers at the University of Michigan found design flaws in 78% of the 214 financial institution websites they studied. Is the sample evidence sufficient to conclude that more than three out of four of these websites are prone to fraud? Use a 5% significance level for the test. a. Select the null and the alternative hypotheses. He: p = 0.75; HA: P = 0.75 He: p ≤ 0.75; HA: P >0.75 He: pz 0.75; HA: P < 0.75 b. Calculate the sample proportion. (Round your answer to 2 decimal places.) Sample proportion c. Calculate the value of test statistic. (Round final answer to 2 decimal places.) Test statistic N
Many financial institutions are unwittingly training their online customers to take risks with their passwords and other sensitive acc information, leaving them more vulnerable to fraud. Researchers at the University of Michigan found design flaws in 78% of the 214 financial institution websites they studied. Is the sample evidence sufficient to conclude that more than three out of four of these websites are prone to fraud? Use a 5% significance level for the test. a. Select the null and the alternative hypotheses. He: p = 0.75; HA: P = 0.75 He: p ≤ 0.75; HA: P >0.75 He: pz 0.75; HA: P < 0.75 b. Calculate the sample proportion. (Round your answer to 2 decimal places.) Sample proportion c. Calculate the value of test statistic. (Round final answer to 2 decimal places.) Test statistic N
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
Related questions
Question
100%
Answer completely. No need for long solutions. Just brief solutions with correct answers. I will upvote. Thank you
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning