A manufacturer knows that their items have a normally distributed length, with a mean of 12.4 inches, and standard deviation of 0.8 inches. If 2 items are chosen at random, what is the probability that their mean length is less than 13.2 inches?

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.2…

A: GivenMean(μ)=14.2standard deviation(σ)=2.2

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 14.1…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6.6 inches,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.9 inches,…

A: GivenMean(μ)=9.9standard deviation(σ)=2.6

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

A: given mean = 9.6 inches  Standard deviation = 1.8

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 10 inches,…

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

Q: The buffet has an average wait line of 45 minutes, with a standard deviation of 15 minutes. If we…

A: Given Data Population Mean,μ = 45.0 Population Standard Deviation,σ = 15.0

Q: A manufacturer knows that their items have a lengths that are skewed right, with a mean of 6.1…

A: Given: Length of items = X X distribution is skewed towards right mean of X= 6.1 inches standard…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 18 inches,…

A: Let X be the random variable from normal distribution with mean (μ) = 18 inches and standard…

Q: Suppose that the mean and standard deviation of plants height are 130 and 42, respectively, if a…

A:

Q: The heights of ten-year-old males are normally distributed with a mean of 56 inches and a standard…

A:

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

A:

Q: manufacturer knows that their items have a normally distributed length, with a mean of 15.6 inches,…

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

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

A: Mean = 17 Standard deviation = 2.8 Sample size = 5

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 8.2 inches,…

A: Let X denote the length of items and it follows normal distribution with mean of 8.2 inches and…

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: A manufacturer knows that their items have a normally distributed length, with a mean of 18.8…

A: The probability that it is less than 18.8 inches long when one item chosen at random is obtained…

Q: manufacturer knows that their items have a lengths that are skewed right, with a mean of 19.3…

A: Given that.   X~N( μ , ?^2 )   μ=19.3     , ?=5.7  ,n=48   Z-score =( x - μ )/?

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

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

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 15.4…

A: We know it is normally distributed. So we can use the z - probability formula. z=x-μσ Here, μ -…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 13.2…

A:

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 14.8…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 15 inches,…

A: Mean = 15 Standard deviation = 1

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

A: Mean = 12.4 Standard deviation = 1.7

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 16.4…

A:

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

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 13.1…

A: Given,sample size(n)=6mean(x¯)=13.1standard deviation(σ)=2

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: at their items have a normally distributed length, with a mean of 16.8 inches, and standard…

A: According to the sum, A manufacturer knows that its items have a normally distributed length, with a…

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

A: Given, Item have length follows normal distribution with mean 11.9 and standard deviation 1.1…

Q: A manufacturer knows that their items have a lengths that are skewed right, with a mean of 8.1…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 8.7 inches,…

A: Let x be the length which follows normal distribution with mean 8.7 and standard deviation 2.2. The…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 11 inches,…

A: Given :  sample mean = 11             standard deviation of samples=1.722=0.3624412178…

Q: The heights of 18-year-old men are approximately normally distributed with a mean of 68 inches and a…

A:

Q: Suppose the heights of 18-year-old men are approximately normally distributed, with mean 66 inches…

A: Let "x" be the heights of 18-year-old men. Draw the normal curve and shade the area between…

Q: f 12 items are chosen at random, what is the probability that their mean length is less than 11.4…

A: Items have normally distributed length with mean 11.6 inches and standard deviation as 2.1 inches. X…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 8.3 inches,…

A: Given data,μ=8.3σ=1.8P(X<10.7)=?

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: A manufacturer knows that their items have a normally distributed length, with a mean of 6.4 inches,…

A: Given Mean=6.4 Standard deviations=0.5

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: A manufacturer knows that their items have a normally distributed length, with a mean of 16.1…

A:

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

A: Let x¯ denotes the mean length of an manufacturer item which follows normal distribution. The mean…

Q: manufacturer knows that their items have a normally distributed length, with a mean of 5.7 inches,…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.8 inches,…

A: Here the length of item follows Normal distribution with mean=9.8 and standard deviation=0.8, ie…