17. A researcher was interested in comparing the salaries of female and male employees at a particular company.Independent simple random samples of 8 female employees and 15 male employees yielded the followingweekly salaries (in dollars).Femalel Male722 518495760562 904880 1150556520 805904500 4805201250 9701005750 6057431640660Use a 0.05 significance level to test the claim that the mean salary of female employees is less than the meansalary of male employees. Use the traditional method of hypothesis testing.(Note: x1 = 8705.375, x2 = $817.067, s1 = $ 183.855, s2 = $330.146.)%3D%3D%3D%3D

Given data1- denotes Female2 – denotes Male

Answered: 17. A researcher was interested in…

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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A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in Utah and Oregon. Due to recent trends in the childcare industry, the firm suspects that the mean annual income of childcare workers in Utah is less than the mean annual income of childcare workers in Oregon. To see if this is true, the firm selected a random sample of 20 childcare workers from Utah and an independent random sample of 20 childcare workers from Oregon and asked them to report their mean annual income. The data obtained were as follows. Annual income in dollars 27060 , 42320 , 36445 , 37895, 44564 , 35325 , 30313 , 28698, 33706 , 48365 , 26946 , 25063 , 28339 , 29265 , 40051 , 37026 , 40150 , 42753 , 27820, 39471 Utah 29769 , 48859 , 32480 , 36288,45102 , 46219 ,51098 , 45516 , 38834 , 44659 , 40755 , 38006 , 39947 , 29801 , 32200, 38731 , 41370 , 28059 , 33753 , 35271 Oregon Send data to calc... v Send data to Excel The population standard deviation for the annual incomes of…
According to a recent article about individuals who have credit cards, the mean number of cards per person with credit cards is 4.5. To test this result a random survey of 60 individuals who have credit cards was conducted. The survey only includes the number of credit cards per participant. The results of the survey are attached below. (a) What is the variable of interest in this study? Is it qualitative or quantitative? (b) Do the results of the survey imply that the mean number of cards per individual is less than 4.5? Use the a = 0.05 level of significance. E Click the icon to view the data from the survey. (a) What is the variable of interest in this study? Is it qualitative or quantitative? The variable of interest is number of credit cards.It is a quantitative variable. (b) Do the results of the survey imply that the mean number of cards per individual is less than 4.5? Use the a = 0.05 level of significance. State the null and alternative hypotheses. Họ: H = 4.5 < 4.5 H1: H…
The FBI compiles information on robbery and property crimes by type and selected characteristic and publishes its findings in Uniform Crime Reports. According to that document, the mean value lost to purse snatching was $468 in 2012. For last year, 12 randomly selected purse-snatching offenses yielded the values lost, to the nearest dollar.405, 519, 529, 477, 315, 572, 434, 455, 375, 341, 288, 503 You are conducting a hypothesis test at .06 level of significance. You have computed a p-value of .026. Based on this, what conclusion do you draw about the null hypothesis? Explain.
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A researcher was interested in comparing the salaries of female and male employees at a particular company. Independent simple random samples of 8 female employees and 15 male employees yielded the following weekly salaries (in dollars). Female Male 495 722 518 760 562 904 556 880 1150 904 520 805 520 500 480 1005 1250 970 743 750 605 660 1640 Use a 0.01 significance level to test the claim that the mean salary of female employees is less than the mean salary of male employees.
As part of a dissertation at Oklahoma State University, Ota Lutz investigated the effect of teaching science to children using NASA materials versus traditional science instructions. Here are the final exam scores for the students in the two :groups Traditional: 64, 75, 72, 65, 53, 54, 71, 95, 73, 71 NASA :55, 80, 77, 76, 70, 61, 85, 67, 70, 84, 70 Is there a difference in the mean test scores for the ?two groups The null hypothesis, the alternative hypothesis and the kind of it (right- tailed, left- tailed or two- tailed), are Ho : Hirad = UNASA H: Hirad # HN ASA .The alternative hypothesis is two-tailed Ho : Hırad = HNASA H1: Hirad # HNASA .The null hypothesis is two-tailed Ho : Hirad = HNASA H: Hirad HNASA .The alternative hypothesis is right-tailed

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