Suppose the average salary for dentists is normally distributed with mean $145239 and standard deviation $12737. What is the probability that 26 randomly selected dentists have an average salary between $148996 and $151922?

Q: Suppose the number of students in a class for the Business Statistics program at a University has a…

A: Given Mean=23 Standard deviations=4.3 n=15

Q: according to a survey conducted by wedding book, women who celebrated valentines day last year spend…

A: given data, normal distribution μ=86σ=27 probability that a randomly selected woman who celebrated…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 15.4…

A: We have to find the probability that their mean length is less than 15.9 inches...

Q: Suppose that heights of 10-year-old boys in the US vary according to a normal distribution with mean…

A: The objective of this question is to find the probability that the height of a randomly selected…

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose the average speeds of passenger trains traveling from Newark, New Jersey, to Philadelphia,…

A: Given: X~N(μ,σ)μ=88σ=6.4

Q: Suppose that the monthly incomes of all employees in Firm A are normally distributed with a mean of…

A: Given: Let us define the random variable X as the monthly income of employees in firm A. Mean = μ =…

Q: Assume the values of accounts receivable by a corporation are distributed with a true mean of…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.5…

A:

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A:

Q: Suppose the salaries of a company that pays to its employees are normally distributed with an…

A:

Q: Household incomes in the city of Tampa Bay  are right-skewed with an average of 50,270 and standard…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: ry is $159,964 for an assistant professor and $147,702 for an associate professor. Assume that the…

A: Given: μ for assitant professor salary = $159,964μ for associate professor salary =…

Q: The height of an adult male in the United States is approximately normally distributed with a mean…

A: From the provided information, Mean (µ) = 69.0 Standard deviation (σ) = 2.6  X~N (69.0, 2.6)

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 17.7…

A: consider the test statistics z=x-μσn where μ is the mean, σ is the standard deviation, n is the…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 18.2…

A:

Q: The annual salary for an emergency room nurse is a normally distributed random variable with a mean…

A: Mean()=80000standard deviation()=12000sample size(n)=36

Q: 1.A study of the amounts of time (in hours) college freshmen study each week found that the mean is…

A:

Q: Elephants are the mammals with the longest gestation period.  One species of elephant has a mean…

A: We have find probabiity..

Q: Assume that the distribution of starting salaries for accounting majors is normally distributed with…

A: The problem provides us with the following values:Mean (μ) = $45,000Standard deviation (σ) =…

Q: Suppose that the height distribution of students in your class was normally distributed with mean 68…

A:

Q: Sold home prices in a region during a certain year are approximately normally distributed with mean…

A: Given,sample size(n)=18mean(μ)=$191,772Standard deviation(σ)=$48,000

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 5.5 inches,…

A:

Q: Suppose that heights of 10-year-old boys in the US vary according to a normal distribution with mean…

A: The objective of this question is to find the probability that the height of a randomly selected…

Q: Suppose that an airline has a requirement that male members of the cabin crew are between 62 inches…

A: Approach to solving the question: 1) First find the z-score for both the given inches.2) Find the…

Q: Suppose that the distribution for total amounts spent by students vacationing for a week in Florida…

A: Answer:- Given     X ~ N(μ, σ )                      Where mean μ   = 650        &    standard…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.5…

A: We have to find given probability.

Q: Assume that heights of U.S. men between 45 and 50 years of age are normally distributed with mean 70…

A: From the information, sample size is 49, mean 70 inches and a standard deviation of 0.75 inches

Q: The annual salary for an emergency room nurse is a normally distributed random variable with a mean…

A: Suppose the random variable x defines the annual salary for an emergency room nurse.

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.