L tlhe lneafl daily usage l0 10l ADeret 's customers. 7. (10 marks) Firm ABC in Ottawa very pride...
l tlhe lneafl daily usage l0 10l ADeret 's customers. 7. (10 marks) Firm ABC in Ottawa very prides itself in its ability to fill customers' orders in six calendar days or less on the average. Periodically, the operations manager selects a random sample of customer orders and determines the number of days required to fill the orders. Based on this sample information, he decides if the desired standard is not being met. He will assume that the average number of days to fill customers' orders is six or less unless the data suggest strongly otherwise. (a) (4 marks) Establish the appropriate null and alternative hypotheses (b) (6 marks) On one occasion when a sample of 20 customers was selected, the average number of days was 6.65, with a sample standard deviation of 1.5 days. Can the operations manager conclude that his business is achieving its goal? Do the test with a significance level of 0.025 and specify the assumption required to do the test. 8. (10 marks) A study concluded that average leisure time spent per week by women in 2016 was 33.80 hours and 37.56 hours for men. The samnlo
l tlhe lneafl daily usage l0 10l ADeret 's customers. 7. (10 marks) Firm ABC in Ottawa very prides itself in its ability to fill customers' orders in six calendar days or less on the average. Periodically, the operations manager selects a random sample of customer orders and determines the number of days required to fill the orders. Based on this sample information, he decides if the desired standard is not being met. He will assume that the average number of days to fill customers' orders is six or less unless the data suggest strongly otherwise. (a) (4 marks) Establish the appropriate null and alternative hypotheses (b) (6 marks) On one occasion when a sample of 20 customers was selected, the average number of days was 6.65, with a sample standard deviation of 1.5 days. Can the operations manager conclude that his business is achieving its goal? Do the test with a significance level of 0.025 and specify the assumption required to do the test. 8. (10 marks) A study concluded that average leisure time spent per week by women in 2016 was 33.80 hours and 37.56 hours for men. The samnlo