Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

If possible please show how to solve step by step on calculator. (2 points) The following Exercise is based on summary statistics rather than raw

If possible please show how to solve step by step on calculator.

image text in transcribedimage text in transcribed
(2 points) The following Exercise is based on summary statistics rather than raw data. This information is typically all that is presented in published reports. You can calculate inference procedures by hand from the summaries. Use the conservative Option 2 (degrees of freedom the smaller of n - 1 and n2 - 1 for two-sample t confidence intervals and P-values. You must trust that the authors understood the conditions for inference and verified that they apply. This isn't always true.) Equip male and female students with a small device that secretly records sound for a random 30 seconds during each 12.5-minute period over two days. Count the words each subject speaks during each recording period, and from this, estimate how many words per day each subject speaks. The published report includes a table summarizing six such studies. Here are two of the six: Sample Size Estimated Average Number (SD) of Words Spoken per Day Study Women Men Women Men 1 53 53 15386 (7488) 16289 (9039) 2 26 18 16789 (7895) 12122 (8145) Readers are expected to understand this to mean, for example, the 53 women in the first study had x = 15386 and S = 7488. It is commonly thought that women talk more than men. Does either of the two samples support this idea? For each study:(a) State the alternative hypothesis in terms of the population mean number of words spoken per day for men (HM) and for women (up). If necessary, use != to represent #. Study 1: MM HF Study 2: MM HF (b) Find the two-sample t statistic to test #F - HM. Study 1: Study 2: (c) What degrees of freedom does Option 2 use to get a conservative P-value? Study 1: Study 2: (d) Compare your value of t with the critical values in Table C. What can you say about the P- value of the test? Study 1: P- value > Study 2:

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

Discrete Mathematics and Its Applications

Authors: Kenneth H. Rosen

7th edition

0073383090, 978-0073383095

More Books

Students also viewed these Mathematics questions

Question

What ethical theories/principles might guide Mr. Scharf's decision?

Answered: 1 week ago