Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

kapatel Depression and Insomnia often go hand-in-hand. Mendoza & Company, a national pharmaceutical firm, hos positioned Itself as a specialist In the production of both

image text in transcribed
kapatel Depression and Insomnia often go hand-in-hand. Mendoza & Company, a national pharmaceutical firm, hos positioned Itself as a specialist In the production of both antidepressants and sleeping pills. Mendoza's current business model describes the following breakdown of America's approximately 50 million adults suffering from Insomnia: 17% use both antidepressants and sleeping pills regularly, 24% use only antidepressants regularly, 15% use only sleeping pills regularly, and the remaining 44%% use neither antidepressants nor sleeping pills regularly. In a recent study on Insomnia in a psychiatry Journal, 160 American adults suffering from insomnia (but otherwise chosen at random) were asked about their use of antidepressants and sleeping pills. The breakdown of their answers is given by the top row of numbers in the table below. (These numbers are the frequencies observed for the sample of 160 insomniacs.] The second row of numbers gives the expected frequencies under the hypothesis that Mendoza's model Is correct. The bottom row of numbers contains the following value for each of the categories of medication use. fo f) (Observed frequency - Expected frequency) Expected frequency Part 1 ( lo - fe ) Fill In the missing values in the table. Round your responses for the expected frequencies to two or more dedmal places. Round your responses to three or more decimal places. Send data to Excel Both Only antidepressants Only sleeping pills Neither Total X 5 Observed frequency 35 29 22 160 Expected frequency 38.40 24.00 2.301 0.167 Part 2 Answer the following to summarize the test of the hypeches's that Mendoza's model Is correct. Use the 0 05 level of significance for the test (a) Determine the type of best statistic to use. X Type of test statistic: (Choose one] (b) Find the value of the test statistic. (Round your answer to two (c) Find the prisical value. (Round your answer to two or more decimal places.) (d) Can we condude that the model are 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_2

Step: 3

blur-text-image_3

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

Variational Inequalities And Frictional Contact Problems

Authors: Anca Capatina

1st Edition

3319101633, 9783319101637

More Books

Students also viewed these Mathematics questions