Mathematics, 06.08.2019 22:20 tessthetoast
Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation sigma. assume that the population has a normal distribution. round the confidence interval limits to the same number of decimal places as the sample standard deviation. the mean replacement time for a random sample of 20 washing machines is 11.6 years and the standard deviation is 2.8 years. construct a 99% confidence interval for the standard deviation, sigma, of the replacement times of all washing machines of this type.
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 18:40, ariloveshorses
Which statements regarding efg are true? check all that apply.
Answers: 1
Mathematics, 21.06.2019 21:20, madisontrosclair2
Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)
Answers: 3
You know the right answer?
Use the given degree of confidence and sample data to find a confidence interval for the population...
Questions in other subjects:
Social Studies, 02.01.2020 23:31
Geography, 02.01.2020 23:31
