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

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A: The confidence level is 0.90, the standard deviation is 310 and margin of error E is 50.

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.

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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…

A: From the provided information, Sample size (n) = 11 Confidence level = 95%

Q: 2. Construct a 99 % Confidence interval for µ. You may use any method covered in class. Blood…

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

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

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