Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

10. Gnagey's Gknives claim they will last at least year 10 years without needing to be sharpened. Consumer Reports randomly samples 42 knives, and calculates

10.

image text in transcribed
Gnagey's Gknives claim they will last at least year 10 years without needing to be sharpened. Consumer Reports randomly samples 42 knives, and calculates that they need to be sharpened on average in 9.25 years. Based on other knife sharpening studies, suppose that the population standard deviation is known to be 1.7 years. Consumer Reports wants to conduct a hypothesis test at 0.01 level of signicance. What is the best interpretation of the results of the hypothesis test? 0 Because the p-value is greater than alpha, we reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is incorrect 0 Because the p-value is less than or equal to alpha, we fail to reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is correct 0 Because the p-value is less than or equal to alpha, we reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is incorrect 0 Because the p-value is greater than or equal to alpha, we reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is correct 0 Because the p-value is greater than alpha, we fail to reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is correct 0 Because the p-value is greater than alpha, we fail to reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is incorrect 0 Because the p-value is less than or equal to alpha, we reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is correct 0 Because the p-value is less than or equal to alpha, we fail to reject the null hypothesis, and conclude that there is statistical evidence that Gnagey's Gknives claim is incorrect

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Essentials Of Business Statistics

Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or

5th Edition

978-1259688867, 1259688860, 78020530, 978-0078020537

More Books

Students also viewed these Mathematics questions