A philanthropic organisation sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5331 donations. (a) Give a 95% confidence interval for the true proportion of those from their entire mailing list who may donate. (b) A staff member thinks that the true rate is 5.6%. Given the confidence interval you found, do you find that rate plausible? (a) What is the 95% confidence interval? The 95% confidence interval is from nothing% to nothing%. (Round to two decimal places as needed.) (b) Given the confidence interval you found, is the proposed true rate, 5.6%, plausible?
A philanthropic organisation sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5331 donations. (a) Give a 95% confidence interval for the true proportion of those from their entire mailing list who may donate. (b) A staff member thinks that the true rate is 5.6%. Given the confidence interval you found, do you find that rate plausible? (a) What is the 95% confidence interval? The 95% confidence interval is from nothing% to nothing%. (Round to two decimal places as needed.) (b) Given the confidence interval you found, is the proposed true rate, 5.6%, plausible?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A philanthropic organisation sent free mailing labels and greeting cards to a random sample of
100,000
potential donors on their mailing list and received
5331
donations.(a) Give a
95%
confidence interval for the true proportion of those from their entire mailing list who may donate.(b) A staff member thinks that the true rate is
5.6%.
Given the confidence interval you found, do you find that rate plausible?(a) What is the
95%
confidence interval?The
95%
confidence interval is from
nothing%
to
nothing%.
(Round to two decimal places as needed.)
(b) Given the confidence interval you found, is the proposed true rate,
5.6%,
plausible?Expert Solution
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