Two competitive investment fund managers devised a plan to determine which one is better at picking stocks. They hired a statistician to randomly select some stocks from each manager’s portfolio and to compare the proportions of these stocks that are valued higher than they were 6 months earlier. Her analysis revealed that 66% of the stocks picked by manager #1 had increased in value while 60% of the stocks picked by manager #2 had increased in value. Her *p*-value for a two-tailed test was 0.3500. At a significance level of 0.05, what should she conclude?- ○ Fund manager #1 is better at picking stocks than fund manager #2.- ○ Fund manager #2 is better at picking stocks than fund manager #1.- ○ There is insufficient evidence to conclude that the two fund managers differ in their ability to pick stocks.- ○ There is sufficient evidence to conclude that the two fund managers differ in their ability to pick stocks.

Given that The proportion of stock picked by manager 1 is p1=0.66 And the proportion of stock picked by manager 2 is p2=0.60 level of significance =0.05 And p value=0.3500

Answered: Two competitive investment fund…

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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