Americans spend an average 12.2 minutes in the shower. If the standard deviation of the variable is 2.3 minutes and the variable is normally distributed, find the probability that the mean time of a sample of 12 Americans who shower will be less than 11 minutes.

Q: The average age of accountants is 53 years, with a standard deviation of 5 years. If an accounting…

A: We have to find probability..

Q: h students to compete a certain examination is 50.6 minutes. The standard deviation is 6 minutes.…

A: Given, μ=50.6σ=6

Q: Americans drank an average of 34 gallons of bottled water per capita in 2014. If the standard…

A: Let the random variable X denote the American drank gallons of bottled water. Given that average…

Q: Find the probability that a random sample of 36 men will have a mean weight less than 190 lbs

A: Given: μ=179σ=29n=36 Calculate the corresponding Z score as follows: The probability that a random…

Q: he probability that a patient recovers from a delicate heart operation is 0.85. What is the standard…

A:

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: The average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: Let "X" be the height of a certain age group of people in inches.

Q: population has a mean of 350 and a standard deviation of 25, determine the probability that a random…

A: GIVEN DATA, μ=350σ=25n=40p(335<x¯<375)=?

Q: The average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: Let X be the random variable from normal distribution with mean or average (μ) = 53 and standard…

Q: The net weight of a can of salmon is a random variable with a mean of 6.07 ounces and a standard…

A:

Q: the average age of bank managers is 40 years. assume the variable is normally distributed. if the…

A: The age of manager is normally distributed with mean μ=40 years and standard deviation σ=5 years. To…

Q: A researcher showed the mean of weights of college football players to be 200 pounds with a standard…

A:

Q: the weights of 8000 men follows a normal distribution with mean 67 kg. and the standard deviation 10…

A: We want to find probability for given data

Q: If the probability of defective bolt is 0.1, find the mean and the standard deviation for the number…

A: Given the probability of a defective bolt is, 0.1 That is, p=0.1 The total number of bolts is, n=400…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: Number of patients (n) = 8 p(patient recovers) = 0.85 Let "X" be the number of recovered patients…

Q: Find the probability that a randomly selected year of rain in Sydney, Australia has a yearly…

A: Given Population mean μ=137, population standard deviations σ=69, Let X be the rain in Sydney Note:…

Q: Proctor & Gamble reported that an American family of four washes an average of 1 ton (2000…

A: Introduction:Here, the suggested population mean, μ = 2,000 pounds.The population standard…

Q: The average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: Solution-: Given: μ=53inches,σ=4inches We find, P(a selected individual's height will be greater…

Q: The average age of accountants is 43 years, with a standard deviation of 5 years. If an accounting…

A: From the given information,   Mean = 43 Standard deviation = 5 Sample size = 30

Q: The average person uses 130 gallons of water daily. If the standard deviation is 35 gallons , find…

A: Given that, Mean = 130 Standard deviation = 35 Sample size = 25

Q: find the probability that the mean time of a sample of 15 Americans who shower will be less than 12…

A:

Q: The Average height of a certain age group of people is 53 inches. The standard deviation is 4…

A: From the given information,   Mean = 53 Standard deviation = 4

Q: The average age of managers is 40 years. Assume the variable is normally distributed. If the…

A: Given data,μ=40σ=5P(35<X<46)=?

Q: bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of…

A:

Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 survey will be taken.…

A: Given Data: Let X represent the random variable Mean=80 SD=7   n=49 M~ Normal(80,7249)

Q: The average credit card debt for college seniors is$3262. If the debit is normally distributed with…

A: The distribution of credit card debt is given as, X~N(µ=3262, σ=1100).

Q: probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to have…

A: Given problem is binomial distribution Let, X: Patient recovers from a rare blood disease p=Prob. of…

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.