37. In a sample of 34 full size down comforters, the average Welght with a variance of 2.6. Give a point estimate for the population variance of the weight of the full size down comforters. Round your answer to two decimal places, if necessary.

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The state education commission wants to estimate the fraction of tenth grade students
that have reading skills at or below the eighth grade level. In an earlier study, the
population proportion was estimated to be 0.18.
36.
How large a sample would be required in order to estimate the fraction of tenth graders
reading at or below the eighth grade level at the 90% confidence level with an error of
at most 0.02? Round your answer up to the next integer.
Answer:
37.
In a sample of 34 full size down comforters, the average weight was found to be 34.5 oz
with a variance of 2.6.
Give a point estimate for the population variance of the weight of the full size down
comforters. Round your answer to two decimal places, if necessary.
Answer:
38.
Find the point estimate for the true difference between the given population means.
Round your answer to the nearest whole number.
= 50 and x2
= 39
Answer:
132 of 13
MAT 106.04 Professor Felix
Transcribed Image Text:The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. In an earlier study, the population proportion was estimated to be 0.18. 36. How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 90% confidence level with an error of at most 0.02? Round your answer up to the next integer. Answer: 37. In a sample of 34 full size down comforters, the average weight was found to be 34.5 oz with a variance of 2.6. Give a point estimate for the population variance of the weight of the full size down comforters. Round your answer to two decimal places, if necessary. Answer: 38. Find the point estimate for the true difference between the given population means. Round your answer to the nearest whole number. = 50 and x2 = 39 Answer: 132 of 13 MAT 106.04 Professor Felix
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