Which expression is NOT equal to 729? 3 × 3 × 3 × 3 × 3 × 3 63 9 × 9 × 9 36
2 answers:
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Answer:
a) E = 2482.90
b) 99% Confidence interval: (41510.1,46475.9)
Step-by-step explanation:
We are given the following in the question:
Sample mean, =$43,993
Sample size, n = 90
Alpha, α = 0.051
Sample standard deviation, s = $9,144
a) The margin of error
Formula:
b) 99% Confidence interval:
Putting the values, we get,