two similar cylinders have surface areas of 40pi square feet and 90pi. What is the ratio of the height of the large cylinders to
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Answer:
95% Confidence interval: (5.5,8.5)
Step-by-step explanation:
We are given the following data in the question:
8,10,8,4,5,7,3,10,8
Sample size,n = 9
Population standard deviation = 2.3
Formula:
Sample mean = 7
95% Confidence interval:
Putting the values, we get,
is the required confidence interval for population mean.