3. It is desired to estimate the total Y of nurse practitioner hours spent indirect patient care in a large HMO during a given year. This is to be doneby taking a simple random sample of patients and determining, for eachvisit during the year, the number of nurse practitioner hours spent duringthe visit. It is known that there are 3524 members of the HMO and that8950 visits took place during that year. A small pilot sample of 10 patientsyielded the following data:VisitsPatient1Nurse PractitionerHours030370203051231--042345678910a. Based on these pilot data, would you recommend a customaryestimate or a ratio estimator as the estimation method for thesample survey? Document the reasons for your recommendation.b. Based on this data, how many patients would have to be sampledto estimate the total of nurse practitioner hours with a coefficient ofvariation not exceeding 10%? Using the customary estimator.c. Based on this data, how many patients would have to be sampledto estimate the total of nurse practitioner hours to with a coefficientof variation not exceeding 10%? Using the ratio estimator.

The complete detailed solution is given below. Explanation:(a) (b) (c)

Answered: 3. It is desired to estimate the total…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When the nature of population from which samples is drawn is not known to be normally distributed the data can be analysed with the help of a. Parametric statistics b. Descriptive statistics c. Non-parametric statistics d. None of the above
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In a study comparing banks in two countries, a sample of 142 matched pairs of banks was formed. Each pair contained one bank from country x and one from country y. The pairings were made in such a way that the two members were as similar as possible in regard to such factors as size and age. The ratio of total loans outstanding to total assets was calculated for each of the banks. For this ratio, the sample mean difference (country x - country y) was 0.0579, and the sample standard deviation of the differences was 0.3086. Test, against a two-sided alternative, the null hypothesis that the two population means are equal. (Assume α = 0.01.) Click the icon to view the critical values of the Student's t distribution. The test statistic is t = 2.236. (Round to three decimal places as needed.) The critical value(s) is(are) (Round to three decimal places as needed. Use a comma to separate answers as needed.)
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11)
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