The government staff is interested to determine the mean age of all the government employee working in the municipal hall for this purpose, the stuff use a random sample of 90 employees drawn from the population with mean of 37.50 and standard deviation of 8.25 the if x is the mean of the random sample find the following: a.the mean age of the random sample b. the standard devarition of the random sample c.the probability that mean age is between 30-40 years old d.the probability that mean age is less than 32 years old

Q: A prototype automotive tire has a design life of 38,500 miles with a standard deviation of 2,500…

A: Given A prototype automotive tire has a design life which follows a normal distribution with  Mean…

Q: The    length    of    time    taken    on    the    SAT    for    a    group    of    students…

A:

Q: label each pa

A: According to the given scenario, the duration of a particular type of a criminal trial is known to…

Q: Q is normally distributed with a mean of 100 and a standard deviation of 15 Suppose an individual…

A: given data  normal distribution  μ = 100σ = 15 for top 3% : x>?

Q: that the In order to set rates, an insurance company is trying to est standard deviation is 2.8…

A:

Q: There are 4 flights from San Diego to Denver in a given day. The number of flights that will arrive…

A:

Q: A particular fruits weights are normally distributed with a mean of 786 grams and a standard…

A: Concept of sampling distribution of sample mean: Let a particular characteristic of a population is…

Q: he mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and…

A: Given Information: Mean μ=5.1 Standard deviation σ=1.0 Sample size n=21 (g) To find the probability…

Q: The final exam grade of a statistics class has a skewed distribution with mean of 78 and standard…

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: A random variable follows the normal probability distribution with a mean of 115 and a standard…

A: Mean()=115standard deviation()=24

Q: 3 Part (b) Give the distribution of X. X- O Part (c) Find the probability that the child spends less…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: he scores on Professor Nazi's second exam in Statistics have a bell-shaped distribution with a mean…

A: Empirical rule :  According to empirical rule ,  1) 68% of data falls within the first standard…

Q: eople often have to replace their wedding ring due to it being lost, damage destroyed etc. the…

A: The table shows the frequency distribution for the number of wedding rings that have to be replaced…

Q: 1. be less than 30? 2. be greater than 2 below the population mean? 3. be less than 5 above the…

A: Here AS PER POLICY I SHOULD HAVE TO CALCULATE 3 PARTS ONLY EVEN THOUGH I HAVE CALCULATED 4

Q: KPU recently released the student's salary who graduated in 2019 with a business degree. The average…

A:

Q: The Atlanta Braves baseball team as a mean batting average of 250 with a standard Deviation of 20.…

A: Given that, mean mu=250  and standard deviation, sigma=20 we know that z score is given by, z score=…

Q: Suppose that the number of Facebook friends users have is normally distributed with a mean of 146…

A: Mean(µ) = 146Standard deviations (σ) = 44 X ~ N (µ, σ )= N (146, 44) n = 47 Mean= µx̅ = µ = 146 σx̅…

Q: The lengths of adult males' hands are normally distributed with mean 193 mm and standard deviation…

A: Probability distribution

Q: A leading magazine (like Barron's) reported at one time that the average number of weeks an…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: DI HAND UR EXCEL FILE. The life expectancy in the United States is 75 with a standard deviation of 7…

A: GivenMean(μ)=75standard deviation(σ)=7sample size(n)=49

Q: The lengths of adult males' hands are normally distributed with mean 187 mm and standard deviation…

A: It is given that the mean is 187 and the standard deviation is 7.2.

Q: 1. A box contains tickets 1, 1, 2, 2, 3. (The average of the tickets is 1.8 and the standard…

A: Given Information: There are five tickets in the box. (1, 1, 2, 2, 3) The average of the tickets is…

Q: p I do not understant what to do 1) list five different things that are normally distributed. You…

A: I need help I do not understant what to do 1) list five different things that are normally…

Q: Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an…

A: Solution-:Given: We want to find

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: Suppose that the average number of Facebook friends users have is normally distributed with a mean…

A: From the provided information, Mean (µ) = 113 Standard deviation (σ) = 57 X~N (113, 57)

Q: The percent of fat calories that a person in America consumes each day is normally distributed with…

A: Given data,μ=33σ=12

Q: (490, 510)? ne sample mean.

A: Given Data Population Mean,μ = 500.0 Population Standard Deviation,σ = 80.0 sample…

Q: t distance? calculate this probability? ate the result. If there is more than one z-score, a. Is.…

A: We have given that theMean(µ) = 269Standard deviations (σ) = 71

Q: The length in days of human pregnancies is known to be normally distributed with a mean of 266 days…

A: Mean(µ) = 266 Population Standard deviations (σ) = 16Sample size (n) = 50