An article in Cancer Research tested the tumorigenesis of a drug. Rats were randomly selected from litters and given the drug. The times of tumor appearance were recorded as follows: 101, 104, 104, 77, 89, 88, 104, 96, 82, 70, 89, 91, 39, 103, 93, 85, 104, 104, 81, 67, 104, 104, 104, 87, 104, 89, 78, 104, 86, 76, 103, 102, 80, 104, 94, 104, 104, 76, 80, 72, 73 Calculate a 95% confidence interval on the standard deviation of time until a tumor appearance. O a. 13.13
An article in Cancer Research tested the tumorigenesis of a drug. Rats were randomly selected from litters and given the drug. The times of tumor appearance were recorded as follows: 101, 104, 104, 77, 89, 88, 104, 96, 82, 70, 89, 91, 39, 103, 93, 85, 104, 104, 81, 67, 104, 104, 104, 87, 104, 89, 78, 104, 86, 76, 103, 102, 80, 104, 94, 104, 104, 76, 80, 72, 73 Calculate a 95% confidence interval on the standard deviation of time until a tumor appearance. O a. 13.13
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![An article in Cancer Research tested the tumorigenesis of a drug. Rats were randomly selected from
litters and given the drug. The times of tumor appearance were recorded as follows:
101, 104, 104, 77, 89, 88, 104, 96, 82, 70, 89, 91, 39, 103, 93, 85, 104, 104, 81, 67, 104, 104, 104, 87,
104, 89, 78, 104, 86, 76, 103, 102, 80, 104, 94, 104, 104, 76, 80, 72, 73
Calculate a 95% confidence interval on the standard deviation of time until a tumor appearance.
O a. 13.13 <o< 20.46
O b. 11.94 <o< 18.61
O C. Insufficient Data
O d. None of the above](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6960d6c9-6feb-41a2-894b-8f2bf38aebf1%2Fac1c3c7c-c97c-4c17-afa0-341a4ce6325b%2Fkdb434_processed.png&w=3840&q=75)
Transcribed Image Text:An article in Cancer Research tested the tumorigenesis of a drug. Rats were randomly selected from
litters and given the drug. The times of tumor appearance were recorded as follows:
101, 104, 104, 77, 89, 88, 104, 96, 82, 70, 89, 91, 39, 103, 93, 85, 104, 104, 81, 67, 104, 104, 104, 87,
104, 89, 78, 104, 86, 76, 103, 102, 80, 104, 94, 104, 104, 76, 80, 72, 73
Calculate a 95% confidence interval on the standard deviation of time until a tumor appearance.
O a. 13.13 <o< 20.46
O b. 11.94 <o< 18.61
O C. Insufficient Data
O d. None of the above
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