1. In a study of perception, 110 men are tested and 24 are found to have red/green color blindness (based on data from USA Today).  Assume that this was done in a simple random manner.  A 95% confidence interval estimate of the proportion of all men with red/green color blindness was found to be 0.14 to 0.30.  If we learn that the actual population proportion of men with red/green colorblindness is equal to 0.12, then what can we conclude?    A. The confidence interval was wrong.   B. We would need to see the sample data to make any conclusions Pick either answer A or B as your answer and show your work to go with it

Q: 20. a) Calculate the theoretical probability for 100 spins of the following spinner. b) Comment on…

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Q: what would be the 90% confidence interval of the true proportion of young adults who have received…

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A: The formula for computing confidence interval is,  n is the sample size and P is the proportion.

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Q: how many people should you sample? 4 80 125 382 383

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Q: If n=41n=41, ¯xx¯=36, and s=9s=9, find the margin of error for a 80% confidence level.

A: Answer - Given, Sample size n = 41,    x  = 36    and s = 9               80% confidence interval…

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A: Number of Canadian adults in 2005= 75 Number of Canadian adults in 2009 = 120   significance level =…

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Q: Before 14 1 20 1 6 After 41 7 1 215 20 700 13 530 35 92 108 Construct a 95% confidence interval for…

A: Use the Excel and calculate the Mean and standard deviation

Q: 1.Community college students conduct a survey at their college. They ask "Do you plan to transfer to…

A: We have given that,  Favorable cases (X) = 80 and sample size (N) = 100 Then,  We will find the 94%…

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Q: General Social

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Q: Suppose we observed 15 successes in a random sample of 60 subjects. What is the 99% confidence…

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Q: A pharmaceutical company is running tests to see how well its new drug lowers cholesterol. Eleven…

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A: Given,sample size (n)=145sample proportion(p^)=0.53α=1-0.95=0.05α2 =0.025z0.025 =1.96

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A: Compare the length from the formula to the length of given confidence interval.

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A: We have given that  Sample size n=1102 90% confidence interval.  = (0.6773, 0.7227)

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A: M1=$3900M2=$3300n1=400n2=450σ1=$880σ2=$810

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Q: If n= 220, p-hat= .4, then what will be the 87.4% confidence interval for the population proportion?

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Q: Suppose we know that a confidence interval for a population proportion is (0.572, 0.662), with a…

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Q: From a random sample of 64 high school seniors, the sample mean and standard deviation of the math…

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Q: 7. A recent survey of 500 women indicated that 29% of women over age 55 in the study were widows.…

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A: Given,   The sample proportion is,

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Q: A pharmaceutical company is running tests to see how well its new drug lowers cholesterol. Fourteen…

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