Write a confidence interval problem using one of the options below. Gather the a
ID: 2949101 • Letter: W
Question
Write a confidence interval problem using one of the options below. Gather the appropriate data and post your problem (without solution) in the discussion board. Once your initial post is complete, respond to your own post with the solution for others to check their work. Think about a population mean that you may be interested in and propose a confidence interval problem for this parameter. For example, to the problem is to estimate the population mean number of times that adults go out for dinner each week. The data could be that you spoke with seven people you know and found that they went out 2, 0, 1, 5, 0, 2, and 3 times last week. You then would choose to calculate a 95% (or another level) confidence interval for the population mean.
Explanation / Answer
t value at 95% = 2.4469
mean = 1.8571 std.dev. = 1.7728, n =7
CI = mean +/- t *(s/sqrt(n))
= 1.8571 +/- 2.4469 *(1.7728/sqrt(7))
= (0.2175 , 3.4967 )
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