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  1. mathematics
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  3. 2. given the following descriptive statistics, n=1

2. Given the following descriptive statistics, N=18 X bar = 11.5 S sub x = 2 a. find the...

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Question

Statistics

2. Given the following descriptive statistics,

N=18

X bar = 11.5

S sub x = 2

a. find the 95% confidence interval of the population meanu.

b. Suppose you know the population standard deviation = 2. Whatis the minimum sample size that makes the confidence intervallength less than 1?

Answer & Explanation Solved by verified expert
4.4 Ratings (591 Votes)
Givena 95 confidence interval for population meanmuThe formula to find the confidence interval isTo find t critical value degrees of freedom N 1    See Answer
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