Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

4. ACE appliance manufacturing company claims that the proportion of defectives in their brand is lower than that of PREMIER's, their next door competitor. The

image text in transcribedimage text in transcribed
4. ACE appliance manufacturing company claims that the proportion of defectives in their brand is lower than that of PREMIER's, their next door competitor. The manager of ACE wants to demonstrate the validity of this claim. For this purpose, he selects a random sample of 36 appliances from each company and find that 3 ACE and 5 PREMIER's appliances are defective. Should we believe ACE's claim based on this data? (a) (2 points) Let ACE be population 1 and PREMIER be population 2. State the null hypothesis and alternative hypothesis (b) (4 points) Find the test statistic (c) (2 points) If the type-I error a = 0.05, find the critical value(s) and shade the rejection region(s) (d) (2 points) Base on the type-I error a and rejection region(s), given above, what is your conclu sion?(Do not use p-value to support your conclusion)3. An official of the state department of social services claims that the proportion of 16-year old girls in Passaic County who are unwed mothers has gone down below 20%. A social researcher randomly selected 200 girls of the age group and found that 35 of them were unwed mothers. (a) (2 points) State the null hypothesis and alternative hypothesis (b) (4 points) Find the test statistic (c) (2 points) If the type-I error a = 0.05, find the critical value(s) and shade the rejection region(s) (d) (2 points) Base on the type-I error a and rejection region(s), given above, what is your conclu sion?(Do not use p-value to support your conclusion)

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

Business Statistics A Decision Making Approach

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

9th Edition

013302184X, 978-0133021844

More Books

Students also viewed these Mathematics questions

Question

What are the four examples of indirect investments in real estate?

Answered: 1 week ago

Question

5. Give some examples of hidden knowledge.

Answered: 1 week ago