ONLY Q18 QUESTION 18The service time for customers coming through a checkout counter has mean 50 seconds and standard deviation 6.8seconds. Find the probability that the average service time for 64 passengers to get service will be between 48.4 and 51.6seconds.0.18970.96990.93990.0301QUESTION 19A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to beable to assert with 95% confidence that the mean of her sample is off by at most 0.3 minutes. If she can presume from pastexperience that the actual time follows normal distribution with a standard deviation of 1.5 minutes, how large the samplewill she have to take?96SavClick Save and Submit to save and submit. Click Save All Answers to save all answers.

Name: ONLY Q18 QUESTION 18The service time for customers coming through a ch
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Description: ONLY Q18 QUESTION 18The service time for customers coming through a checkout counter has mean 50 seconds and standard deviation 6.8seconds. Find the probability that the average service time for 64 passengers to get service will be between 48.4 and 5

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QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and standard deviation 6.8 seconds. Find the probability that the average service time for 64 passengers to get service will be between 48.4 and 51.6 seconds. 0.1897 0.9699 0.9399