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3) 14pts). A pollster wishes to estimate the number of left-handed scientists. How larger a sample is needed in order to
Posted: Wed May 11, 2022 1:41 pm
by answerhappygod
- 3 14pts A Pollster Wishes To Estimate The Number Of Left Handed Scientists How Larger A Sample Is Needed In Order To 1 (28.25 KiB) Viewed 24 times
3) 14pts). A pollster wishes to estimate the number of left-handed scientists. How larger a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 4%? 4) 16pts). A group of 19 randomly selected employees has a mean age of 22.4 years with a standard deviation of 3.8 years. Assume the population has a normal distribution a) Construct a 90% confidence interval for the population mean. Round your answer to 4 decimal places. b) Interpret the confidence interval result from part(a).