A candidate in a local election thinks seniors are by far her best supporters. She believes that the difference in the support between seniors and non-seniors is more than 15%. In order to verify this belief, her supporting team sampled 100 seniors and 150 non-seniors to find what proportion of each group supports the candidate. It is found that 50 of the seniors support her and 36 of the non-seniors support her.   a. Specify the competing hypotheses to determine if the difference in the support between seniors and non-seniors is more than 15%! b. Calculate the value of the test statistic and make a conclusion at the 5% significance level. c. Determine the p-value, and can you have the same conclusion with (b)!

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Q: Males and females were asked what they would do if they received a $100 bill in the mail that was…

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A:

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Q: The College Board reported that 58.7% of all students who took the 2010 AP Statistics exam earned…

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Q: Win Loss Suit 22 28 T-Shirt 28 22 O A. The proportions of wins is different for teams wearing suits…

A: The proportion of wins wearing suit = 22/50 The proportion of wins wearing t-shirt= 28/50

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A: Program A B C 510 450 600 400 510 620 490 400 580 520 430 490 490 480 590 630 360 640…

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A:

Q: A local school board wants to estimate the difference in the proportion of households with…

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Q: i). Write the null and alternative hypotheses.

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Q: a. Let p denote the population proportion of correct hand selections by touch therapists. Identify…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.