Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

How would I solve and work this problem? Please show details for understanding. Thank you! A psychologist obtains a random sample of 20 mothers in

How would I solve and work this problem? Please show details for understanding. Thank you!

A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. After 5years, the child is administered an IQ test. It is known that IQs are normally distributed with a mean of 100. If the IQs of the 20 children in the study result in a sample mean of 104.4 and sample standard deviation of 14, is there evidence that the children have higherIQs? Use the =0.10 level of significance.

A) Calculate the P-value

B) State the conclusion for the test.

C) State the conclusion i context to the problem

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

High School Math 2011 Algebra 1(prentice Hall)

Authors: Prentice Hall

Student Edition

9780133500400, 0133500403

More Books

Students also viewed these Mathematics questions

Question

1. Distinguish between debt and equity.

Answered: 1 week ago