Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46cases of lightbulbsproduced during

Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46cases of lightbulbsproduced during a morning shift at a plant. A manager wants to know if the mean number of defective light bulbs is greater than 20 during the morning shift. She will make her decision using a test with a level of significance of .10. The following information was extracted from the Microsoft Excel output:

n = 46

Mean = 28.00, Standard deviation: 25.92

Standard Error = 3.82

Null hypothesis: H0: 20

=0.10

df= 45

T test statistic = 2.09

One Tail upper critical value = 1.3006

p value = 0.021

What should the manager decide?

A. Reject the null

B. Do not reject the null

C. Accept the null

D. Not enough information provided

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

Ordinary Differential Equations

Authors: William A Adkins, Mark G Davidson

1st Edition

1461436184, 9781461436188

More Books

Students also viewed these Mathematics questions