Mathematics, 07.03.2020 03:26, PLEASEHELP4528
A car company developed a certain car model to appeal to young consumers. The car company claims the average age of drivers of this certain car model is26.00 years old. Suppose a random sample of 18 drivers was drawn, and the average age of the drivers was found to be 28.70 years. Assume the standard deviation for the age of the car drivers to be 2.3 years. Complete parts a through c below. a. Construct a 95% confidence interval to estimate the average age of the car driver. The 95% confidence interval for the average age of the car driver has a lower limit of years old and an upper limit of years old.
Answers: 2
Mathematics, 21.06.2019 17:30, QueenNerdy889
Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 21:00, datgamer13
Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years
Answers: 1
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