If the average commute to work (one way) is 30 minutes, assuming commuting times are normally distributed and that the standard deviation is 5.2 minutes, what is the probability that commuter spends more than 40 minutes commuting one way?

Q: that the amount of time an Internal Revenue Service examiner is supposed to spend reviewing a…

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

Q: The average credit card debt for Americans is $5,725. If the debt is normally distributed with a…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.7 inches,…

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: It has been observed that the net amount of soda in such a can has a normal distribution with a mean…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: A lawyer commutes daily from his suburban home to his midtown office. The average time for a one-way…

A: The binomial distribution discovered by James Bernoulli. If X is a discrete random variable with…

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: If the average length of stay in the hotel is 12 days with a standard deviation of 6 days assuming…

A: It is given that average length of stay in the hotel is 12 days with a standard deviation of 6 days…

Q: A manufacturer knows that their items have a lengths that are approximately normally distributed,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.6…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10.6…

A: Obtain the Z-score for the random variable X equals 8.9. The Z-score for the random variable X…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10 inches,…

A: We have given that, Items are normally distributed with Mean(Mu) = 10 inches and standard deviation…

Q: The average length of actual running time (excluding advertisements) for television feature films is…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10.8…

A:

Q: While checking receipts at Reds, it was determined that the average amount spent on       food per…

A: Mean = 21.50 Standard deviation = 2.22 n = 8

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

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.1 inches,…

A: It is given that the mean is 9.1 and standard deviation is 1.3.

Q: If the weights of sheep are considered normally distributed with a mean of 60 kg and a standard…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 7.4 inches,…

A: Let "M" be the mean length of the item in inches.

Q: The average expense of the dela cruz family is 12,600 every half month with a standard deviation of…

A: It is given that μ=12600 and σ=1570 Also x<11000 z=x-μσ=11000-126001570≈-1.02

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

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

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.7…

A:

Q: A manufacturer knows that their itenys have a normally distributed length, with a mean of 17.2…

A: Solution: Let X be the length. From the given information, X follows normal distribution with mean…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 12.4…

A: Given Information: Mean μ=12.4 Standard deviation σ=2.6 If 4 items are chosen at random, to find the…

Q: 4. The income of employees at Casio Inc. are normally distributed with a mean of $ 2300 and a…

A: GivenMean(μ)=2300standard deviation(σ)=25

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: A manufacturer knows that their items have a normally distributed length, with a mean of 12.5…

A: given  A manufacturer knows that their items have a normally distributed length, with a mean of 12.5…

Q: The normal model applies to the productivity of all workers at a factory, with a mean of 75 units…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 19.2…

A: Given that, Mean = 19.2 Standard deviation = 3

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

A:

Q: While checking receipts at Reds, it was determined that the average amount spent on food per table…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 19.3…

A: Given information: A manufacturer knows that the length of its items are normally distributed…

Q: Suppose that the number of customers who enter a supermarket each hour is normally distributed with…

A: Let X denote the number of customers who enter a supermarket each hour and it follows normal…

Q: If the weights of sheep are considered normally distributed with a mean of 60 kg and a standard…

A: let  x is defined as the weights of sheep are considered normally distributed with a mean of 60 kg…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6 inches,…

A: GivenMean(μ)=6standard deviation(σ)=0.6sample size(n)=22

Q: The average commute to work (one wav) is 25 minutes accordina to the 2005 American Community Survey.…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 11.7…

A:

Q: If the average person adds 27 pounds of glass to recycle per year, with a standard deviation of 3,…

A: Mean (µ) = 27 Standard Deviation (σ) = 3 Sample size (n) = 20 Probability that the sample mean…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 20 inches,…

A: Determine the Z score for the random variable X equals 23.1., The Z score for the random variable X…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…

A: Since you have posted more than one question  we have solved the first question for you.  For…

Q: Suppose that the average number of hurricanes is 32 per year with a standard deviation of 2.8 and…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.7 inches,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6.7 inches,…

A:

Q: Suppose the average age at death of a California Adventist is 85.5 with a standard deviation of 5.6…

A: Given Data: Let X represent the random variable Mean=85.5 SD=5.6   Assuming normal distribution X~…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10.8…

A: Provided information is, a manufacturer knows that their items have a normally distributed length,…

Q: As reported in Runner's World Magazine, the times of finishers in the New York City 10-km run are…

A: Let "X" be the time of finishers in the New York City 10-km run.

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 17 inches,…

A: Let X be the length of the item. We have, μ=17, σ=5.4  We want to find out P(X<4.8) when X=4.8,…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 10 inches,…

A: Mean = 10 Standard deviation = 3.2