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Question 7 An 80% confidence intervals for the proportion of first-year statistics students with brown hair is given to be Not complete (0.26, 0.45). Marked out of 2.00 (a) What is the sample proportion of students with brown hair? P Flag Round to 3 decimal places, if needed. question (b) What is the margin of error of this interval? (Round to 3 decimal places, if needed.) (c) What is the critical value used for this interval? (Round to 3 decimal places, if needed.) (d) What is the standard error of the estimate? (Round to 3 decimal places, if needed.) (e) What was the sample size? (Round to the appropriate integer.)A correct answer is 564.0, which can be typed in as follows: 564. 0 Question 6 A poll of 428 home sellers found that 26.2% were trying to sell their home without a real estate agent. The Correct margin of error for this poll was 3.5%. Find the approximate confidence level used by the pollsters. Mark 1.00 out of 1.00 Answer: 90 % (Enter one of the following: 80, 90, 95, 98, 99) Flag question Your last answer was interpreted as follows: 90 Correct answer, well done. Correct. A correct answer is 90.0, which can be typed in as follows: 90. 0 MacBook Pro