the mean production of workers in a certain factory is 10 products per hour with a standard deviation of 1.5 products per hour. what is the probability of finishing (a) less than 12.8 products per hour? (b)more than 12 products per hour? (show the normal distribution)

Q: Describe the standard normal distribution. What are its characteristics?

A: Standard normal distribution curve is given.

Q: Using the Standard Normal Distribution Table, what is the likelihood that a score will fall below a…

A: Given: Z~N(0,1)

Q: IQ is a scoe that is transofrmed so that it has a normal distribution with a mean 100 and standard…

A: Given ,  IQ is a score (X) that is transformed so that it has a normal distribution. Mean = x¯ = 100…

Q: What is the calculator command used to find the probability of a continuous Normal random variable…

A: The Normal distribution is a continuous probability distribution that is symmetrical on both sides…

Q: The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. What is…

A: It is given that the mean is 7.45 and standard deviation is 3.6.

Q: What is the special property of the standard normal distribution?

A: Standard normal distribution: The total area under the density curve is equal to 1.

Q: About % of the area under the curve of the standard normal distribution is between 0.059 and z =…

A: Press 2nd and VARS Choose normalcdf

Q: The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean…

A: GivenMean(μ)=21standard deviation(σ)=6

Q: What are the conditions for using a normal distribution to approximate a binomial distribution?

A: In probability distribution, the binomial distribution is a discrete probability distribution with…

Q: Consider the normal distribution with mean 50 and standard deviation 8. Find the area under the…

A: 1)GivenMean(μ)=50standard deviation(σ)=8

Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

A:

Q: The mean age that cats get adopted at a shelter is 21.4 months with a standard deviation of 3.6…

A: Normal distribution is also known as the Gaussian distribution . It is widely used in statistics .

Q: Wild deer population weight has standard deviation of 50 lb. What is the probability of existence of…

A: Wild deer population weight has standard deviation of 50 lb.  Sample size, n = 100 x¯-μ=±5

Q: What percentage of z-scores in the standard normal distribution are between z = -.20 and z = .40

A: Finding the p-value from z using excel

Q: Explain the Normal Distribution? Also Define normal distribution for a single variable?

A:

Q: normal normal distribution has a mean of u=100 and o=20.

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

A:

Q: For normal distribution with a mean of 4 and a standard deviation of 2, the value 5 has a z value of…

A: Mean, μ = 4 Standard deviation, σ = 2 Raw score, X = 5

Q: Driving speed (mph) approximately follows a normal distribution with mean 70 and standard deviation…

A: From the provided information, Mean (µ) = 70 Standard deviation (σ) = 5 X~N (70, 5)

Q: normal distribution has µ=80 standard deviation of 10. what is probability of randomly selecting a…

A: Given:  Calculate the corresponding Z score as follows: The probability of randomly selecting a…

Q: The probability that a randomly selected sociology major received a starting salary offer less than…

A: It is given that the mean is 43256 and standard deviation is 3150.

Q: Parmesan cheese is aged for an average of 24 months to allow it to develop the desired richness in…

A: Let x be the age of Parmesan cheese which follows normal distribution with mean 24, and standard…

Q: If Z follows standard normal distribution, then the mean of Z equals

A: The objective is to find the value of mean if z follows standard normal distribution.

Q: The price paid for a new phone in a particular model follows a Normal distribution with mean μ=750…

A:

Q: Random samples of size 9 are repeatedly drawn from a normal distribution with a mean of 80 and a…

A: Given data: Mean = 80 Standard deviation  = 20 Sample size  = 9

Q: The standard normal curve is a normal probability distribution that has a mean of 1 and standard…

A: standard normal distribution:-x~N(μ,σ2) then z=x-μσ~N(μ=0,σ2=1)               ~N(0,1)is called…

Q: Find the mean, and standard Random variable =X 1 | 2 deviation for the probability Probability =P(X)…

A: Measure of central tendency are used to measure the average of the data set and this measure are…

Q: The mean pregnancy length of new mothers in a population is 267 days with a standard deviation of 10…

A: The pregnancy length of new mothers is normally distributed with mean 267 days and standard…

Q: The acidity of human blood, measured on a pH scale, is a normal random variable with a mean of 6.7…

A: Let us define  the random variable X as the acidity of human blood measured on a pH scale normally…

Q: A skewed population of scores can be transformed to the standard normal distribution by converting…

A: Z scores: The Z scores just implies how much standard deviation the data value is away from the mean…

Q: Define the chi-squared distribution?

A:

Q: A person with "normal" blood pressure has a diastolic measurement of 76 mmHg, and a standard…

A: