Assume that the number of days it takes a home builder to complete a house is normally distributed with an average completion time of 176.7 days and a standard deviation of 24.8 days. Determine the completion time that the builder has a 95% probability of achieving. Select one: O a. 217.62 O b. 110.67 O . 107.05 d. 108.5

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

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Q: The time taken to download a particular app has been found to be normally distributed, with an…

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Q: SUPPOSE THAT THE VOLUME OF MINERAL WATER IN THE 2-GALLON CONTAINERS A CERTAIN MINERAL WATER STATION…

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

Q: Calculate the standard deviation of a distribution with: n = 15, f= 110 = 1235 77 O 9.364 O 7.333 O…

A: Given,n=15∑ix.f=110∑ix2 .f=1235

Q: Foodland shoppers have a mean grocery bill of R370 with a standard deviation of R100. What is the…

A: Let X be the random variable from normal distribution with mean (μ) = R370 , standard deviation (σ)…

Q: Given a distribution that has a mean of 37 and a standard deviation of 12, calculate the probability…

A: Solution: From the given information, µ=37, σ=12 and n=64.

Q: What is the probability that a randomly selected individual with an MBA degree will get a starting…

A: Given:  Let x be the starting salary of individual from normal distribution with mean u= $40000 and…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: 10. The net meights of all boxes of Top Taste cookies are normally distributed with a mean of 32.07…

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Q: Customers at a certain pharmacyspend an average of $54.40, with a standard deviation of $13.50.…

A: It is given that customers at a certain pharmacy spend an average of 54.40, with a standard…

Q: The battery life of a fully charged cell phone is normally distributed, with a mean of 14 hours and…

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Q: A new extended-life light bulb has an average life of 750 hours, with a standard deviation of 50…

A: As per empirical rule approximately 68-95-99.74% data fall within 1-2and3sd of mean.

Q: The time sent waiting to hear back from a particular therapist office follows a normal distribution…

A: Given:Mean μ=204 standard deviation σ=25.7 What is the probability that a randomly selected person…

Q: The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4…

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Q: Many jobs require applicants for admission to take the driving examination. Scores on the driving…

A: Given,mean(μ)=526standard deviation(σ)=113

Q: Assume that the time used by a baker preparing a birthday cake follows a normal distribution with a…

A: Assume that the time used by a baker preparing a birthday cake follows a normal distribution with a…

Q: A cab company has computed its mean fare to be $34.00, with a standard deviation of $5.10. Suppose…

A: GivenMean(μ)=34.00standard deviation(σ)=5.10Empirical rule is also known as 65-95-99.7 rule68%…

Q: b) The American Automobile Association reports that the average time it takes to respond to an…

A: Given  μ=38, σ=9.002 and n=80

Q: Suppose that the lengths of human pregnancies are normally distributed with a mean of 266 days and a…

A: GivenMean(μ)=266standard deviation(σ)=17

Q: THE TIME TAKEN TO COMPLETE A 25KM RACE IS NORMALLY DISTRIBUTED, WITH AN AVERAGE TIME (µ) OF 2.30…

A: Obtain the probability that a randomly selected participant will take between 2.40 and 2.50 hours to…

Q: normally distributed with a mean of $39,269 and a standard deviation of $2,550. The probability…

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

A: Given,mean(μ)=8.4standard deviation(σ)=1.8sample size(n)=40

Q: The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4…

A: Let , X be the lifespan of a laptop battery. X follows Normal distribution with , Mean = μ = 4 years…

Q: The IQs of applicants to a certain college are approximately normally distributed with a mean of 112…

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Q: most exhibition shows open early in the morning and closes late in the evening. a study of Saturday…

A: a) The time after the doors opened will 90%of the people who are coming to the Saturday show have…

Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 44…

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Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 45…

A: According to the given information, we have Mean = 45 Standard deviation = 15 Sample size, n = 36

Q: The average individual monthly spending in the United States for paging and messaging services is…

A: Suppose a random variable X has mean µ and standard deviation σ. Therefore, the z-score of that…

Q: The time it takes for acrylic paint to dry follows a normal distribution. If the mean is 2 hours and…

A: Solution: Let X be the time it takes for acrylic paint to dry. From the given information, X follows…

Q: . A commuter must pass through 4 different traffic lights on her way to work and will have to stop…

A: The table shows the probability model for the number of red lights hit by commuter.

Q: A commuter must pass through five traffic lights on her way to work and will have to stop at each…

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Q: A popular restaurant chain advertises that it delivers orders within 30 minutes. Suppose the average…

A: Z=(x -mu ) ÷sigma

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

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

Q: According to driver safety statistics in a particular area, one percent of drivers reported that…

A: As per our guidelines we are supposed to answer only one question per post so i am solving first…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given: Thermometer readings follows standard normal distribution.

Q: Find the indicated probability. The incomes of trainees at a local mill are normally distributed…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 1100,…

Q: Assume that thermometer readings are normally distributed with a mean of 0degrees°C and a standard…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a…

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Q: 4. Rochester, NY averages u=22.2 inches of snow for the month of December. The distribution of…

A: 4. The population mean is 22.2, and population standard deviation is 6.5. A local jewelry store…

Q: According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an…

A: From the given information, μ=413 and σ=26.8 The variable time spent is approximately normally…

Q: John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution…

A: From the given information, Consider, X be a random variable which represents driving time that…

Q: Based on data from 1996-2006 from the Western Regional Climate Center, the average speed of winds in…

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Q: A private entity has recorded that the population average of unemployed persons per year in a city…

A: Probability:          Let the total number of possibilities be n and the number of…

Q: In​ 2008, the per capita consumption of soft drinks in Country A was reported to be 19.28 gallons.…

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Q: The batteries from a certain manufacturer have a mean lifetime of 820 hours, with a standard…

A: The mean is 820 hours and the standard deviation is 70 hours.

Q: Heneroso & Co. distributes Christmas baskets to each employee with a mean cost of 2,500 pesos and a…

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Q: A certain website claims that Indian worker spends an average of 2117 hours per year. Assume the…

A: # X be the no of hour spend by Indian worker follow normal distribution with mean mu=2117 and sd=250…

Q: The salaries ofelementary school teachers are normally distributed with a mean of $32,000 and a…

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Q: The mean weight of 1000 students at a certain high school is 140 pounds and the standard deviation…

A: Assuming that the weights are normally distributed.

Q: The average time spent in transportation of randomly selected 48 households is 80.7 minutes per day…

A: We have given that,  Sample size (n) = 48 and average or    mean    (x-bar)= 80.7 and standard…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.