Mary is running for mayor. She wants to know if she has a chance to win, so she collects a random sample of 40 citizens to see if they are going to vote for her of her opponent, Henry. Out of the 40 citizens who were asked, 24 said they were voting for Henry and the other 16 said they were voting for Mary.  Using this data test H0: p=.5 vs. Ha: p>.5, where p is the true proportion of people, who will vote for Mary in the population (i.e., the entire town)? Find the p-value of this test, and what is your conclusion if the test is performed at the a=.5 level?

Q: Joseph is statistics instructor. He is interested in seeing if his fall class or spring class tends…

A: B. 0.0174

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A: Let p1 be the percentage of boys had played computer games  p2 be the percentage of girls had played…

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A:

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A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

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A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…

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A: The objective of the question is to determine the ratio of false positives to true positives based…

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A:

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A:

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A: Central limit theorem: For a simple random sample of size n drawn from a population, the sampling…

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A:

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A: Total number of calls received=1248 Number of people who supported the candidate=216

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A:

Q: For a set of 250 measurements the mean is 110 and the variance is 144, how many of these…

A: Mean = μ = 110 Variance σ2 = 144Standard deviation = σ = σ = 12

Q: 31 of 48% is what?

A: 31 of 48%

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A: The total number of subjects is 200.

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A: Using excel, the required z-score for each type of bank can be calculated as; 1. Enter the data into…

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A:

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A: Given that there are 20 Number of sample at a particular university.

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A: The given table shows the percentages of people who expressed interest in various activities.

Q: decimal places. a. Complete the table. District Observed Expected A B C D 34 7 17 23 Total 81 000…

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Q: If the proportion of Heads is .45 out of 200 flips, what is the p-value?

A: The proportion of Heads is .45 out of 200 flips.

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Q: What is the mode for this data set

A: The data that has the highest frequency is called mode. In other words, it is the most frequent…

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A: We have to find sample size required for given margin of error.

Q: In 2013, 46% of high school students tried a tobacco product. From a survey of 500 randomly…

A: Given : Population proportion =46% n=500