The average annual precipitation for a large Midwest city is 30.85 inches with a standard deviation of 3.6 inches. Assume the variable is normally distributed, Find the probability that the mean of a random selection of 32 months will have a mean less than 30 inches. * 0.0125 0.0985 0.0405 0.0901

Q: The average life of a electric rice cooker is 5 years, with a standard deviation of 1 year. Assume…

A: Obtain the probability that the mean life of a random sample of 9 machines falls between 5.7 and 8.1…

Q: The gestation period of humans follows a normal distribution with a mean of 266 days and a standard…

A:

Q: An adult has on average 5.2 liters of blood. Assume the variable is normally distributed and has a…

A:

Q: The amount of coffee in a can has a mean of 350g. The standard deviation is 5g. Use the normal…

A: From the graph we see that between 345 and 355 the probabilities are 0.34 and 0.34 To find the…

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: The average age of bank managers is 40 y.o. Assumes the variable is normally distributed. If the…

A:

Q: A survey has found out that a family generates an average of 17.2 pounds of garbage per week. Assume…

A: The mean is μ=17.2 and the standard deviation is σ=2.5 The population size is n=55 Therefore the…

Q: a. Find the probability that sick-leave time of an employee in a month exceeds 120 hours.

A: Normal distribution is also known as the Gaussian distribution . It is a bell shaped , symmetric…

Q: brisk walk at 4 miles per hour, burns an average of 300 calories per hour. If the standard deviation…

A: Given Data Population Mean,μ = 300.0 Population Standard Deviation,σ = 8.0

Q: Find the probability that 1 man has weight greater than 160 lb. Assume that weights of males are…

A: Let X represent the random variable Mean=182.9 SD=40.8   X~ Normal (182.9, 40.82)

Q: The annual precipitation for a large Midwest city is 34.0 inches with a standard deviation of 5.0…

A:

Q: The average speed of cars passing a checkpoint is 60 miles per hour with a standard deviation of 8…

A:

Q: Assume that the heights of women are normally distributed with a mean of 64.1 inches and a standard…

A: We have given that.   X~N( μ , ?^2 )   μ = 64.1 , ? = 2.3   Z-score =( x - μ )/?

Q: A certain model of automobile has its gas mileage (in miles per gallon, or mpg) normally…

A: Given Information :  A certain model of automobile has its gas mileage (in miles per gallon, or mpg)…

Q: The gestation period of humans follows a normal distribution with a mean of 266 days and a standard…

A:

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

A: The normal distribution is symmetric in nature having parameters μ and σ.The mean, mode, and median…

Q: Assume that blood pressure readings are normally distributed with a mean of 135 and a standard…

A: According to the given information, we have Mean = 135 Standard deviation = 4.7 Sample size = 35

Q: Assume that the salaries of elementary school teachers in the United States are normally distributed…

A: The provided information are: Population meanμ=31,000Standard deviationσ=3000 Consider, X be the…

Q: The speed of fastballs follows a Normal distribution with mean μ = 92 mph and a standard deviation…

A:

Q: The average life of a brand of automobile tires is 30,000 miles, with standard deviation of 2,000…

A: Mean = 30000 Standard deviation = 2000

Q: The average height of a certain age group of people is 53 inches. The standard  deviation is 4…

A:

Q: > Assume the time it takes the housekeeping crew of a local hotel to clean a room varies uniformly…

A:

Q: The length of time it takes college students to find a parking spot in the library parking lot…

A:

Q: The time until recharge for a battery in a smartphone is normally distributed with a mean of 250…

A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The average daily jail population in the United States is 706,242. If the distribution is normal and…

A: We are authorised to answer one question at a time since you have not mentioned which one you are…

Q: The average age of bank managers is 40 years old. Assume the variable is normally distributed, If…

A: Given the average age of bank managers is 40 years old. Assume the variable is normally distributed,…

Q: The average life of a brand of automobile tires is 30,000 miles, with standard deviation of 2,000…

A: Given: X~N(μ,σ)μ=30000σ=2000

Q: The length of time it takes college students to find a parking spot in the library parking lot…

A:

Q: The amount of coffee in a can has a mean of 350g. The standard deviation is 5g. Use the normal…

A:

Q: The length of time it takes college students to find a parking spot in the library parking lot…

A:

Q: The duration of an NBA basketball game during the 2019-20 season is normally dis- tributed with the…

A: Given that, Mean, mu = 152 and  standard deviation, s = 12 Z score is given by, z=( 130-152)/12 z=…

Q: The average age of managers is 40 years. Assume the variable is normally distributed. If the…

A: Given data,μ=40σ=5P(35<X<46)=?

Q: Assume that blood pressure readings are normally distributed with a mean of 123 and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: The diameter of a steel rod has a normal distribution with a mean of 3.41cm and a standard deviation…

A: Given that, Mean = 3.41 Standard deviation = 0.02

Q: The average time a person spends shopping in a grocery store is 43 minutes. If the time is normally…

A: Given,sample size(n)=20mean(μ)=43standard deviation(σ)=8

Q: ) The diameter of a steel rod has a normal distribution with a mean of 3.41cm and a standard…

A:

Q: The life of a drill bit has a mean of 16 hours and a standard deviation of 2-6 hours. Assuming a…

A: Given data,μ=16σ=2.6

Q: Annual precipitation in a certain city is normally distributed with a mean of 99 inches, and a…

A: Given: standard deviation(σ) = 18 inches sample size(n) = 35 population mean(μ) = 99 inches

Q: The average height of flowering cherry trees in a certain nursery is 10.5 feet. If the heights are…

A:

Q: The mean height of adult males is 70 inches with a standard deviation of 3 inches. Assume this…

A: Given: n=36 μ=70σ=3 Calculate the corresponding z score as follows:

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

A:

Q: male beluga whales have a mean weight of 1980 pounds with a standard deviation of 220 pounds.…

A:

Q: The length of time it takes college students to find a parking spot in the library parking lot…

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: The average salary for teachers is $55,000 with a std. deviation of $4,000. Find probability of…

A: a. The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the…

Q: The mean salary for graduates entering the actuarial field was $63,000. Salaries are approximately…

A: Given information: Mean salary for graduates entering the actuarial field μ=63,000 Standard…

Q: The mean amount spent by a family of four on food is $500 per month with a standard deviation of…

A:

Q: The duration of an NBA basketball game during the 2019-20 season is normally distributed with the…

A: As per the guidelines we are allowed to solve maximum of 3 sub parts If you need help with other…

Q: The average annual salary for all U.S. teachers is 47,750. Assume that the distribution is normal…

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