The weights of the fish in a certain lake are normally distributed with a mean of 11 lbs. and a standard deviation of 12lbs. If the 16 fish are randomly selected, what is the probability that the mean weight will be between 8.6 and 14.6lbs?

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

A:

Q: he distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4…

A: Solution-: Let, X= The distribution of heights of adult males Given: (inches) We find, P[ he…

Q: A racing car is one of the many toys manufactured by Mack Corporation. The assembly times for this…

A: Mean()=55standard deviation()=4The company closes at 5 P.M every day

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300lbs and the…

A: Solution: Let X be the weights of steers in a herd. From the given information, X follows normal…

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: A population has a mean of 200 and a standard deviation of 25. A sample of 64 observations will be…

A: We have to find out given probabiity..

Q: The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer…

A: Population mean=1400Population variance=10000Population standard deviation =√Variance=√10000=100

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: Suppose the mean height in inches of all 9th grade students at one high school is estimated.

A: Population standard deviation, σ =3 inches Sample size n=6

Q: Here are the weights of the bass from Tina’s sample: 12, 9, 15, 10, and 11.  We do not know the…

A:

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300⁢lbs and the…

A:

Q: Find the probability that a sample of 18 has a sample mean below 32. The population mean is 24 and…

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

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

A: From the given information,   Mean = 705 Standard deviation = 32 Sample size = 50

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

A:

Q: A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet…

A: GivenMean(μ)=8.4standard deviation(σ)=1.8sample size(n)=38

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300lbs and the…

A:

Q: Exhibit 6-5 The weight of items produced by a machine is normally distributed with a mean of 8…

A: Given that  Mean = 8 Standard deviation = 2 Find P(X = 8 )

Q: A population has a mean of u = 30. If 3 points are added to each score, what is the mean for the new…

A: Given :  Mean(μ)=30 and N=3

Q: The weights of college football players are normally distributed with a mean of 200 pounds and a…

A: Z = x¯ - μσn~N(0,1)

Q: The population mean is 20 inches and population standard deviation is 4 inches. A random sample of…

A: mean = 20 s =4

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: A pet store has 500 rats whose weights have a mean of 16oz with a standard deviation of 1.1 oz. You…

A: Given Data Population Mean,μ = 16.0 Population Standard Deviation,σ = 1.1 sample…

Q: A population has a mean of μ = 40. If 5 points are added to each score, what is the value for the…

A: Let a population has n units,X1,X2,....,Xn.Then the total sum of the population is S=X1+X2+...+Xn.…

Q: The average length of crocodiles in a swamp is 11 feet. If the lengths are normally distributed with…

A: Given: μ = 11 σ = 1.5 Formula Used: Z = X-μσ

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the…

A: From the provided information,Mean (µ) = 1000Standard deviation (σ) = 200X~N (1000, 200)

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

A: It is given that the ratings are normally distributed with mean 200 miles and standard deviation 50.

Q: The weights of college football players are normally distributed with a mean of 193 pounds and a…

A: Mean = 193 Standard deviation = 53

Q: A population is normally distributed with a mean of 50 and a standard deviation of 10. Find the…

A: Given data,Mean μ=50sd    σ=10P(X<44)=?

Q: Three randomly chosen Seattle students were asked how many round trips they made to Canada last…

A: Geometric Mean : If there are X1, X2,...., Xn are n observations then the geometric mean is given…