The distribution of the number of personal time off (PTO) days per year offered by different U.S. companies is skewed to the right. The mean number of days is 10.7 1. We collect data on the number of personal time off days from a random sample of 50 New England companies. Why is it okay to use these data for inference even though the population is skewed? 2. The standard deviation of the 50 companies in our sample was 9 days. Specify the sampling model (shape, center, spread) for the mean number of PTO days of such samples 3. This sample of randomly chosen New England companies produced a 90% confidence interval of (10.07, 14.33) days. Does this interval provide evidence that number of PTO days are unusually high here in New England?
The distribution of the number of personal time off (PTO) days per year offered by different U.S. companies is skewed to the right. The mean number of days is 10.7 1. We collect data on the number of personal time off days from a random sample of 50 New England companies. Why is it okay to use these data for inference even though the population is skewed? 2. The standard deviation of the 50 companies in our sample was 9 days. Specify the sampling model (shape, center, spread) for the mean number of PTO days of such samples 3. This sample of randomly chosen New England companies produced a 90% confidence interval of (10.07, 14.33) days. Does this interval provide evidence that number of PTO days are unusually high here in New England?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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I need help reviewing this book problem. Why in this case is a skewed sample acceptable? What is the sample model's shape, center, and spread? and does the sample of new England companies provide evidence that the number of PTO days in New England are usually high?
Transcribed Image Text:The distribution of the number of personal time off
(PTO) days per year offered by different U.S. companies
is skewed to the right. The mean number of days is
10.7
1. We collect data on the number of personal time off
days from a random sample of 50 New England
companies. Why is it okay to use these data for
inference even though the population is skewed?
2. The standard deviation of the 50 companies in our
sample was 9 days. Specify the sampling model
(shape, center, spread) for the mean number of PTO
days of such samples
3. This sample of randomly chosen New England
companies produced a 90% confidence interval of
(10.07, 14.33) days. Does this interval provide
evidence that number of PTO days are unusually
high here in New England?
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What about part two which refers to the sampling model's shape, center, and spread?
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