Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliters of whole blood. Then x has a distribution that is approximately normal, with population mean of about 14for healthy adult women. Suppose that a temale patient has taken 10 laboratory blood tests during the past year, The HC data sent to the patient's doctor are as follows.15 18 15 20 15 12 15 16 17 11A USE SALT(a) Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.)(b) Does this information indicate that the population average HC for this patient is higher than 147 Use a- 0.01.(O State the nul hypotheses H, and the alternate hypothesis H(1) What is the value of the sample test statistic? (Round your answer to three decimal places.)(i) Compute the Pvalue. (Round your answer to four decimal places.)Sketch the sampling distribution and show the area corresponding to the Pvalue.

Given : 15 18 15 20 15 12 15 16 17 11 Sample size (n)=10

Answered: et x be a random variable that…

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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Please answer the question contained in the following picture
The data from an independent-measures research study produce a sample mean difference of 4 points, and each sample has a variance of 10. If there are n = 20 scores in each sample, then what is the estimated standard error of the difference between means?
2. A pet association claims that the mean annual costs of food for dogs and cats are the same. The results for samples of the two types of pets are shown in the following table. On wished to test the claim. Assume both populations follow normal distributions Dogs Cats 21 - 16 T1= 239 n2 = 18 Iz= 203 S1 = 32 82 =28 with equal variances. Which of the following formula should be used to calculate the standardized test statistic? (a) Z = (21-32)- Do lu A n2 = (E1-2)-Do (b) Z V n1+2 (c) T (1-2)-Do (21-1)a7+(n2-1)s I1 11+11タ-3 V 1'n2 (d) T = d- Do sp/Vn (e) Z

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