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Oasis Company bottles soft drinks using an automatic filling machine. When the process is running properly, the mean fill is 350 ml per can. Each day, the company selects a random sample of 25 cans yields a mean of 347.85 ml and the standard deviation is 5.5 ml?. They then test to determine whether the filling process is working properly. Suppose that the population is normal. At which significance level a, the null hypothesis is rejected. O 1% 5% 3% O 10%

Oasis Company bottles soft drinks using an automatic filling machine. When the process is running properly, the mean fill is 350 ml per can. Each day, the company selects a random sample of 25 cans yields a mean of 347.85 ml and the standard deviation is 5.5 ml?. They then test to determine whether the filling process is working properly. Suppose that the population is normal. At which significance level a, the null hypothesis is rejected. O 1% 5% 3% O 10%

Calculus For The Life Sciences
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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QUESTION 22 Oasis Company bottles soft drinks using an automatic filling machine. When the process is running properly, the mean fill is 350 ml per can. Each day, the company selects a random sample of 25 cans yields a mean of 347.85 ml and the standard deviation is 5.5 ml?. They then test to determine whether the filling process is working properly. Suppose that the population is normal. At which significance level a, the null hypothesis is rejected. O 1% 5% 3% O 10% QUESTION 23 A local magazine reports that the typical shopper spends at least 8 minutes in line waiting to check out. A sample of 16 shoppers at Carrefour showed a mean of 7.5 minutes with a standard deviation of 2 minutes. Determine the p-value to test whether the waiting time at Carrefour is less than that reported in the local magazine or not? Assume that the waiting times are normally distributed.
Transcribed Image Text:QUESTION 22 Oasis Company bottles soft drinks using an automatic filling machine. When the process is running properly, the mean fill is 350 ml per can. Each day, the company selects a random sample of 25 cans yields a mean of 347.85 ml and the standard deviation is 5.5 ml?. They then test to determine whether the filling process is working properly. Suppose that the population is normal. At which significance level a, the null hypothesis is rejected. O 1% 5% 3% O 10% QUESTION 23 A local magazine reports that the typical shopper spends at least 8 minutes in line waiting to check out. A sample of 16 shoppers at Carrefour showed a mean of 7.5 minutes with a standard deviation of 2 minutes. Determine the p-value to test whether the waiting time at Carrefour is less than that reported in the local magazine or not? Assume that the waiting times are normally distributed.
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