TA2023-TR 1230-145 0585) 5pg 2019 (092 Time Re 6:06 0000OO Suppose that scores on a particular...
Suppose that scores on a particular test are normally distributed with a mean of 140 and a standard deviation of 16. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.
Suppose that scores on a particular test are normally distributed with a mean of 130 and a standard deviation of 19. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place. ?
Suppose that scores on a particular test are normally distributed with a mean of 130 and a standard deviation of 20. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place. |x 6 ?
(Normal distribution: Finding a raw score) Suppose that scores on a particular test are normally distributed with a mean of 110 and a standard deviation of 19. What is the minimum score needed to be in the top 10% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.
Suppose that scores on a particular test are normally distributed with a mean of 110 and a standard deviation of 15. What is the minimum score needed to be in the top 5% of the scores in the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.
STA2023-TR 12:30-145 1585) Spg 2019 (2192) Quiz 4: Chapter 7 8 of 8 Time Remaining 1:10:21 0 6 rer wants to see how long, on average, a new toy captures children's attention. He tests 17 children selected at randem and finds that their 8 minutes. If we assume that attention spans are normally distributed, find a 90% confidence mean attention span is 21 minutes with a standard deviation of interval for the mean attention span of children playing with this...