Module 4 Population means

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Question Description

The Module 04 Homework assignment covers Chapter 9; Inferences from Two Samples. This chapter provides you with important concepts for testing a hypothesis about a population mean, population proportion, and population standard deviation/variance for two samples.

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1. Determine whether the samples are independent or dependent.

The effectiveness of a new headache medicine is tested by measuring the amount of time before the headache is cured for patients who use the medicine and another group of patients who use a placebo drug. Explain

2. Determine whether the samples are independent or dependent.

The effectiveness of a headache medicine is tested by measuring the intensity of a headache in patients before and after drug treatment. The data consist of before and after intensities for each patient. Explain.

Name:______________________________________ Module 4 Homework Assignment 1. Determine whether the samples are independent or dependent. The effectiveness of a new headache medicine is tested by measuring the amount of time before the headache is cured for patients who use the medicine and another group of patients who use a placebo drug. Explain. Solution: Instructor Comments: 2. Determine whether the samples are independent or dependent. The effectiveness of a headache medicine is tested by measuring the intensity of a headache in patients before and after drug treatment. The data consist of before and after intensities for each patient. Explain. Solution: Instructor Comments: 3. In a random sample of 500 people aged 20-24, 22% were smokers. In a random sample of 450 people aged 25-29, 14% were smokers. Test the claim that the proportion of smokers in the two age groups is the same. Use a significance level of 0.01. Show all steps of the hypothesis test and all calculations. Solution: Instructor Comments: 4. A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to perform all steps for hypothesis testing or construct a 99% confidence interval for µ1 - µ2 where µ 1 and µ2 represent the mean for the treatment group and the control group respectively. Use the following t-distribution table http://www.itl.nist.gov/div898/handbook/eda/section3/eda3672.htm Treatment Group n1 = 85 x1 = 189.1 s1 = 38.7 Control Group n2 = 75 x2 = = 203.7 s2 = 39.2 Solution: Instructor Comments: For questions 5 – 9 below, use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations. Five students took a math test before and after tutoring. Their scores were as follows. Student A B C D Before 71 66 67 77 After 75 75 65 80 E 75 87 Using a 0.01 level of significance, test the claim that the tutoring has an effect on the math scores. 5. State the null and alternative hypotheses. Solution: Instructor Comments: 6. Find d, d , and sd, Solution: Instructor Comments: 7. Find the value of the test statistic, t. Solution: Instructor Comments: 8. Find the critical value(s) and state the decision about the null hypothesis. Solution: Instructor Comments: 9. State the conclusion in non-technical terms. Solution: Instructor Comments:

Tutor Answer

Robert__F
School: Cornell University

Please let me know if there is anything needs to be changed or added. I will be also appreciated that you can let me know if there is any problem or you have not received the work. Please let me know if there is anything needs to be changed or added. I will be also appreciated that you can let me know if there is any problem or you have not received the work Good luck in your study and if you need any further help in your assignments, please let me know Can you please confirm if you have received the work? Once again, thanks for allowing me to help you R MESSAGE TO STUDYPOOL NO OUTLINE IS NEEDED

financial operations healthcare
by HAL Lab

Submission date: 28-Jan-2019 06:46AM (UT C-0800)
Submission ID: 1066054726
File name: f inancial_operations_healthcare.pptx (632.51K)
Word count: 1026
Character count: 3954

financial operations healthcare
ORIGINALITY REPORT

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Introduction


The healthcare system is one of the most sensitive departments.



Each participant working in this field needs to come up with strategies that
meet all the requirements in the market.



The successful identification of the needs in the healthcare market helps in
an individual working in this sector to successfully come up with strategies
that may address all the needs.



New healthcare businesses are created each year to address the
healthcare needs within the market.

The You and Me Healthcare Center



The organization aims at providing quality healthcare services to the
community.



This healthcare organization will utilize the readily available resources to
offer services at a reduced price to the community.



The application of services offered by healthcare specialists from the
nearby community will help in improving the relationship between the
organization and the community.



The intended healthcare business will operate within the local area where
it will extend its services to members of the public in this region.

SWOT Analysis


The four key areas of the SWOT analysis evaluate the strengths and
weaknesses...

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