Suppose that the safe distance to avoid an automobile collision between two cars if you drive in good weather is normally distributed with mean of 3 seconds and standard deviation 0.5 second. The probability that safe distance less than 2 seconds is: 0.9772 None of these 0.0228

Q: Among the workers at a large factory, the number of sick days taken per year is normally…

A: Given that, Among the workers at a large factory, the number of sick days taken per year is normally…

Q: Assume that women's heights are normally distrubuted with a mean of 63.6 inches and a standard…

A: From the given information, the mean is 63.6 and the standard deviation is 2.5.

Q: g the length of nails in a large box of 3-inch nails is normally Distributed with a mean of 3 and a…

A: Consider X be a random variable that represents the  length of nails in a large box of 3-inch nails…

Q: According to a study done by Pierce students, the height for Hawaiian adult males is normally…

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Q: (a) A factory manufactured PVC pipes with a mean diameter of 3.4 cm, a standard deviation of 1.7 cm…

A:

Q: At a local restaurant, the amount of time that customers have to wait for their food is normally…

A: The mean is 24 and the standard deviation is 3.

Q: The incoming freshman class at North Carolina State University had a mean unweighted GPA of 3.81…

A:

Q: A small aircraft carries 20 passengers and has doors with a height of 72 in. Heights of men are…

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Q: Assume that the foot length of adult males is normally distributed with mean 11 inches and standard…

A: Answer - Given X   ~  N( μ, σ )                 Where   μ =11 inches     and   σ  = 1.5 inches…

Q: The average rainfall, recorded to the nearest hundredths of a cm, in Roanoke, Virginia for the month…

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Q: Suppose your customers' incomes are normally distributed with a mean of $37,500 with a standard…

A:

Q: The weights of packages of ground beef are normally distributed with mean 1 pound and standard…

A: Introduction:Denote X as the weight (pound) of a randomly selected package of ground beef. Thus, X…

Q: Assume that the women's heights are normally distributed with a mean of 63.7 inches and a standard…

A:

Q: While checking receipts at Reds, it was determined that the average amount spent on       food per…

A: Mean = 21.50 Standard deviation = 2.22 n = 8

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: The amount of time that sales managers devote to their jobs per week is normally distributed with a…

A: Given: The mean amount of times that sales managers devote to their jobs per week is μ=55 hours. The…

Q: A man height and weight  are nomally distributed with mean u= 70 inches and standard deviation a =…

A:

Q: Suppose that the miles-per-gallon (mpg) rating of passenger cars is a normally distributed random…

A:

Q: A small retail store has customers whose ages are normally distributed, with a mean of 37.5 and a…

A: Let X denote the customer ages and it follows normally distribution with a mean of 37.5 and a…

Q: The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation…

A:

Q: In a certain geographical region, the annual rainfall is normally distributed with a mean of 102.2…

A:

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A:

Q: At a customer service call center for a large company, the number of calls received per hour is…

A: Let X represent the random variable   Mean=140 SD=5   X~ Normal (140, 5^2)

Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…

A: Given Data Population Mean,μ = 100.0 Population Standard Deviation,σ = 12.0

Q: Assume that the heights of men are normally distributed with a mean of 66.9 inches and a standard…

A: Let "M" be the mean height of the men.

Q: The amount of time that sales managers devote to their jobs per week is normally distributed with a…

A: Given: μ=54σ=5n=30 a. The probability that randomly selected sales manager works for more than 55…

Q: A factory manufactured PVC pipes with a mean diameter of 3.4 cm, a standard deviation of 1.7 cm and…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: A recent study of the hourly wages of maintenance crew members for major airlines showed that the…

A: Given: μ=20.50σ=3.50 a. The probability the crew member earns between $20.50 and $24.00 per hour is…

Q: assume that women's heights are normally distributed with a mean of 63.6 inches and a standard…

A: Mean = 63.6 Standard deviation = 2.5 Sample size = 81

Q: In a 15-day period, the amount of growth for a population of sunflower plants was found to be a…

A: Here it is given that the growth of sunflower is normally distributed with mean=3.18 and SD=0.52…

Q: The psychomotor retardation scores of 1500 manic depressive patients were found to be normally…

A: From the provided information, Mean (µ) = 930 Standard deviation (σ) = 130 X~N (930, 130) Here X be…

Q: 1.) The average repair cost of a microwave oven is $55, with a standard deviation of $8. The costs…

A: 1) Given that the mean is $55 and the standard deviation is $8. The costs are normally distributed.…

Q: Suppose the number of movies people rent per month is normally distributed with a mean of 4.8 and a…

A: Let x be the number of movies people rent per month which follows normal distribution with mean 4.8…

Q: Suppose that heights of women at UT Tyler are normally distributed with a mean of 64 inches and a…

A: It is given that the mean is 64 and standard deviation is 2.4.

Q: The daily withdrawals from an ATM located at a service station is normally distributed with a mean…

A: Given information: μ=5000, σ=800 x=6400 Use the formula for the normal distribution to determine the…

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: The number of calories in a certain dessert is normally distributed with a mean of 210 and a…

A: We have to find the probability that the dessert one selects will contain between 185 and 216.

Q: Statisticians determined that the mortgages of homeowners in a city is normally distributed with a…

A: Given distribution is normally distributed. Mean=250000 Standard deviation=50000 X~N(μ=250000,…

Q: Suppose the body length of a certain species is normally distributed with mean 39.8 in and standard…

A: GivenMean(μ)=39.8standard deviation(σ)=2.05

Q: Suppose that the number of gallons of milk sold per day at a local supermarket are normally…

A: Let X denote the number of gallons of milk sold per day. X ~ N(424.7,460.9609)

Q: The number of plants pollinated by bees follows a normal distribution with a mean of 6,543 plants…

A: Given information Mean µ = 6543 plants Standard Deviation σ = 35 plants

Q: Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation…

A:

Q: Assume that the heights of men are normally distributed with a mean of 68.1 inches and a standard…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: A courier services company has found that the delivery time for packages is normally distributed,…

A: Given : μ = 14 σ = 2 P(12≤X≤15) = P(X≤15) - P(X≤12)  P(12≤X≤15) = PX-μσ≤15-μσ - PX-μσ≤12-μσ…

Q: The personal office at a large electronics firm regularly schedules job interviews and maintains…

A: Given: Population mean μ=34Population standard deviation σ=7 Sample size(n)  = 9 Consider X be the…

Q: A newborn baby is classified as having Extremely Low Birth Weight (ELBW) if it weighs less than 1000…

A: It is given that the mean is 815 and standard deviation is 100.

Q: Suppose that SAT scores among U.S. college students are normally distributed with a mean of 500 and…

A:

Q: If a continous random variable, x, is normally distributed with a mean of 100 and a standard…

A: Given : X is normally distributed with a mean of 100 and a standard deviation of 15.