4. A study in the July 7, 2009, issue of USA TODAY stated that the 401(k)-participation rate among U.S.employees of Asian heritage is 76%, whereas the participation rate among U.S. employees of Hispanicheritage is 66%. Suppose that these results were based on random samples of 100 U.S. employees fromeach group.a. Using the 2.5% significance level, can you conclude that the 401(k) participation rates are different forall U.S. employees of Asian heritage and all U.S. employees of Hispanic heritage?

From the provided information, Sample size (n) = 100 Sample proportion (p̂) = 0.66 Level of…

Answered: 4. A study in the July 7, 2009, issue…

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 ski company in Vail owns two ski shops, one on the west side and one on the east side of Vail. Ski hat sales data (in dollars) for a random sample of 5 Saturdays during the ski season showed the following results. Is there a significant difference in sales dollars of hats between the west side and east side stores at the 10 percent level of significance? Saturday Sales Data ($) for Ski Hats Saturday East Side Shop West Side Shop 1 548 523 2 493 721 3 609 695 4 567 510 5 432 532 Click here for the Excel Data File (b) State the decision rule for 10 percent level of significance. (Round your answers to 3 decimal places.) (c-1) Find the test statistic tcalc. (Round your answer to 2 decimal places. A negative value should be indicated by a minus sign.) (c-2) What is your conclusion? Ski Hat Sales on Five Consecutive Saturdays (n = 5) Saturday East Side West Side 1 548 523 2 493 721 3 609 695…

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