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Forbes reports that women trust recommendations from Pinterest gender? The following sample data shew the number of women and men who stated in a recent semple that they trust recommendations more than recommendations from any other social network platform (Forbes website, April 10, 2012 ). But, does trust in Pinterest difter by recommendations made on Pinterest Men 170 Trust Recommendations Made on Pinterest 117102 Women 150 Sample a. What is the point s the point estimate of the proportion of women who trust recommendations m the ede on Pinterest (to 2 decimals)? i who trust recommendations made on Pinterest (to 2 decimals)? difference between the proportion of women and men who trust recommendations made on Pinterest (to 4 decimals) 03 enough statistical evidence to show that trust in Fintrest differs by gender (women as d. Is there
if turnout in rural Minnesota was voted in the 2012 Presidential election, while 414 out of 575 registered voters Manesota had the highest turn out rate of any state for the 2012 Presidential election (United States tection Project website, February 9, 2013) Political anaysts wonder higher than turnout in the urban areas of the state. A sample shows that 663 of 884 registered voters from rural Minneseta v from urban Minnesota voted a. Formulate the null and alternative hypotheses that can be used to test whether registered voters in rural Minnesota were more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election b. What is the proportion of sampled registered voters in rural Minnesota that voted in the 2012 Presidentisal election (to 2 decimale)? c. What is the proportion of sampled registered voters in urban Minnesota that voted in the 2012 Presidential election (to 2 decimals)? 03 d. At o - 05, test the hypothesis. What is the p-value, and what condusion do you to draw from your resuts (to 4 deimals)? p-value Conclusion: Cannot cenclute that voters from rural Minnessa voted more frequently than voters frem urban Minnesote
AGecco Warkglace Insights Survey sampled men and women workers and asked if they expected to get a raise or promotion this year (USA Today, February 16, 2012), Suppese the survey sampled men and 200 women. if 104 of the men repied yes and 74 of the women replied yes, are the resuits statistically sig or a promotion this year? a. State the bypothesis test in terms of the population proportion of men and the population proportion of women? ificant in that you can conclude a greater proportion of men are expecting to get a raise rter h H: P-P2reater than b. What is the sample proportion for men? Round your answer to two decimal places What is the sample proportion for women? Round your answer to two decimal places. c. Use a .01 level of signiticance. What is the p-value? Round your answer to four dedimal places Whet is your condusion?
math   Statistics-And-Probability   
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Point of esHmate for women 15 2.78 ).50 ?oint af esmaLe for menis 170on Sidence Tnteval is 0:0809-60 2790 6 3 nı 889 e1 rea 7382乙 O.9a 80 alue(o: 0.05200 0 XL o.S2 10O. 7 て ー 0152-0.37o.ol 3.0 ㅡㅡㅡㅡㅡㅡ기 0.99 ģ7 Simce Rject Nall hypothens.T

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