how would you do this problem I have a ti84 calculator. I need step by step help
ID: 3074571 • Letter: H
Question
how would you do this problem I have a ti84 calculator. I need step by step help
ints) View problem in a pop-up 62 Section Exercise 27 (calc) Roller coaster ride: A roller coaster is being designed that will accommodate 60 riders. The maximum weight the coaster can hold safely is 12,000 pounds. According to the National Health Statistics Reports, the weights of adult U.S.men have mean 193 pounds and standard deviation 67 pounds, and the weights of adult U.S. women have mean 163 pounds and standard deviation 78 pounds. Round the answers to four decimal places. Part 1 weight? The average weight is 200 If 60 people are riding the coaster, and their total weight is 12,000 pounds, what is their average pounds. Part 2 out of 3 If a randotrsample of 60 adult men ride the coaster, what is the probability that the maximum safe weight will be exceeded? If a random sample of 60 adult men ride the coaster, the probability that the maximum safe weight will be exceeded isExplanation / Answer
Answer to the question)
Click on 2nd
Then Click on DISTR
Then look for the function "Normalcdf"
Enter the values:
(200,10000000,193, 67/sqrt(60))
Here 200 is the lower limit and infinity or a very large number serves as infinity
This indicates that we are finding the probability of th weight to exceed 200 per person
Mean for males = 193
Standard deviation = 67/sqrt(60)
That is we divide it by the square root of the sample size
probability of exceeding 200 per person is : 0.209177
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