The amounts of time per workout an athlete uses a stairclimber are normally​ distributed, with a mean of 24minutes and a standard deviation of 5 minutes. Find the probability that a randomly selected athlete uses a stair climber for​   (a) less than 21 ​minutes, (b) between 24 and 32 minutes (c) more than 40 minutes. ​

Q: A hen lays a mean egg 309 eggs per year with a standard deviation is 12.7 eggs. The distribution can…

A: Given information- Sample size, n = 21 Population mean, µ = 309 eggd Population standard deviation,…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Mean = 139.1 Standard deviation = 1.1

Q: Assume that adults have IQ scores that are normally distributed with a mean of 104.7 and a standard…

A: It is given that the IQ score follows normal distribution with mean 104.7 and standard deviation…

Q: the manufacturer of a laser printer reports the mean number of pages a cartridge will print before…

A: From the given information, X: Number of pages should the manufacturer advertise for each cartridge.…

Q: Alfie Solomons owns a rum distillery. On average, he produces 100 liters of rum with a standard…

A:

Q: The amount of tip the servers in an exclusive restaurant receive per shift is normally distributed…

A: Let X be a random variable representing the amount of tip the servers in an exclusive restaurant…

Q: The average score of all golfers for a particular course has a mean of 74 and a standard deviation…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.6 and a standard…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.