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please show step by step for question 6 and 7. please and thank you. Assignment - Ch. 8: Confidence Intervals (Proportions) Score: 16/100 2/7 answered

please show step by step for question 6 and 7. please and thank you.

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Assignment - Ch. 8: Confidence Intervals (Proportions) Score: 16/100 2/7 answered Question 7 Express the confidence interval (55.2 % , 69.6 % ) In the form of p . E. Assignment - Ch. 8: Confidence Intervals (Proportions) Score: 16/100 2/7 answered Question 6 Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 121 with 66 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. CL=

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