Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 1047 and x = 597 who said "yes." Use a 90% confidence level. E Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E=D (Round to three decimal places as needed.) c) Construct the confidence interval, O

Q: In each part, give the value of the standardized statistic (z-score) for the sample proportion.…

A: We have,  Z = p^ - pp(1-p)n

Q: 2. Given: n=80, a = 15, level of confidence is 92%. What is the margin of error of the given data?

A:

Q: 0% IC'O7 crushed walnuts 14.29%

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A: Solution: a. From the given information, p=0.60 and E=0.03. The confidence level is 0.95.

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Q: se the sample data and confidence level given below to complete parts​ (a) through​ (d). A research…

A: Consider that p is the true population proportion of the respondents who felt vulnerable to identify…

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Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

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Q: Find the condence level and a for a. a 90% confidence interval.b. a 99% confidence interval.

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A:

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A: According to the provided information: The proportion can be calculated as:

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A: The degrees of freedom is obtained as follows:

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A: Given (a) n = 100, p̂ = 0.57 (b) n = 200, p̂ = 0.57.   (c) n = 200, p̂ = 0.40.

Q: Construct a confidence interval for the population proportion p. n ? 144, x ? 86, 90% confidence

A: Given: Confidence level = 0.90 Sample size (n) = 144 x = 86 Sample proportion p^=xn=86144

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Q: Define If the actual Y score was 31, but the predicted score was 28, then the error of prediction is…

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A: Consider that pi’s are the proportion of the audiences for ANC, CBS, NBC and independents.

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A: See the handwritten solution

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.