The length of time it takes to find a parking space at 8am follows a normal distribution with a mean of 10 minutes and a standard deviation of 3 minutes. 25% of the time, it takes at most how many minutes to find a parking space? O 7.99 O 8.99 O 9.99 O 10.99 O 11.99 O 12.99 O 13.99 o o

Q: S The age of professional racecar drivers is normally distributed with a mean of 28 and a standard…

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Q: The average GPA at the University of North Carolina is 3.2, with a standard deviation of 0.3. Assume…

A: Given that.   X~N( μ , ?^2 )   μ=3.2     , ?=0.3   Z-score =( x - μ )/?

Q: For a normal distribution, given a standard deviation of 3.8 and a mean of 54, what percent lies…

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Q: ge grade on a mathematics test is 82, with a standard deviation of 5. Suppose the instructor assigns…

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the top 12%…

Q: 20. The exam scores of 300 students are distributed normally with a mean of 72 and a standard…

A: 20). The provided information is: Sample sizen=300 Meanμ=72 Standard deviationσ=10 Assume that X is…

Q: The life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and…

A: Given that.   X~N( μ , ?^2 )   μ=30000    , ?=6000   Z-score =( x - μ )/?

Q: Bundles of firewood are normally distributed with a mean of 20 pounds, and a standard deviation of 2…

A: According to the given information, we have Mean = 20 Standard deviation = 2 Z score = 1.50

Q: For a normal distribution with a mean of µ = 80 and a standard deviation of σ = 10, what is p(X<95)?…

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Q: A Harris poll claims that each person in the US will spend an average of $92.12 on Halloween this…

A: Given :  A Harris poll claims that each person in the US will spend an average of $92.12 on…

Q: The Bank of Connecticut issues Visa and MasterCard credit cards. It is estimated that the balances…

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: For a normal distribution with a mean of µ = 80 and a standard deviation of σ = 10, what is p(X<95)?…

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Q: A researcher was testing the number of pop corn kernels that popped out of a mini bag of 100 kernels…

A: Given: μ=72σ=12 The percentage of the bags should have popped 60 kernels or more is obtained as…

Q: The price of lunch at the mall has a mean of $5.00. The standard deviation is $1.50. What is the…

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Q: A consumer survey indicates that the average household spends μ = $155 on groceries each week. The…

A: (a) Obtain the proportion of the population spends more than $175 per week on groceries. The…

Q: Drivers pay an average of u = $690 per year for automobile insurance. The distribution of insurance…

A: Solution: Let x  be the insurance payments has normal distribution with mean μ=$690 and standard…

Q: Provide an appropriate response. 13) The length of time it takes college students to find a parking…

A: Given: Let X denote the length of time is takes college students to find a parking spot in the…

Q: The commuting time for a student to travel from home to a university campus is Normally distributed…

A: Let X be the commuting time for a student to travel from home to a university campus is Normally…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: X: time spent by a teacher at work in the holidaysX~N(μ,σ)Mean(μ)=20 hoursstandard deviation(σ)=5…

Q: You may need to use the appropriate appendix table to answer this question. The time needed to…

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Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: A citrus farmer has observed the following distribution for the number of oranges per tree. The…

A: Given information- We have given the probability distribution for the number of oranges per tree.…

Q: Weekly Ford sales follow a normal distribution, with amean of 50,000 cars and a standard deviation…

A:

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: Surgical instruments manufactured in Sialkot have a mean weight = 15 pounds and a standard deviation…

A: Obtain the value of c. The value of C is obtained below as follows:

Q: ed for évents held at City- Community theatre are believed to be normally distributed with a mean of…

A: Given data, μ=12,000σ=1000

Q: The heights of strawberry plants are Normally distributed with a mean of 12 inches and a 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: The lifetime of a particular type of car tire is normally distributed. The mean lifetime is 50,000…

A: Answer: A. 10200.

Q: The time needed to complete a final examination in a particular college course is normally…

A: Given Information: The time needed to complete a final examination is normally distributed with a…

Q: An executive drives from her home to her office in the city. The driving times are normally…

A: Given, Driving time normally distributed with mean 35 and standard deviation 8 minutes.

Q: Consider the normal distribution of IQs with a mean of 100 and a standard deviation of 16. What…

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Q: The weights, in grams, of 30 randomly selected apples from a large bin are shown below. The mean…

A: The probability plot can be drawn by using the given data. Compute the z score for all the…

Q: On a mathematics test in a high school, scores are normally distributed with a mean of 77 and a…

A: Given that.   X~N( μ , ?^2 )   μ=77     , ?=16.8   Z-score =( x - μ )/?

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: Given: mean μ= 20 Standard deviation σ=5 Concept: Here we shall use z score formula, z=x-μσ

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

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Q: The numbers of pages in the books in a library follow a normal distribution. If the mean number of…

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Q: 10 percent of the students in a class of 100 are planning to go to graduate school. The standard…

A: It is given that n=100 and p=0.10.

Q: What is the probability that a randomly selected Visa card issued by this bank has a balance between…

A: Let X represents the  balances on all these Visa cards. Given that C follows N(mean = 840, SD = 260)…

Q: Major league baseball salaries averaged $1.5 million with a standard deviation of $ 0.8 million in…

A: From the provided information, the average salary (µ) = $ 1.5 millionThe standard deviation (σ) =…

Q: Assuming that student incomes from employment in industry during the day are normally distributed…

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Q: The average price of a Google Chromebook is 21,100 php. Assuming that the prices are approximately…

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Q: Given that we have a normal distribution with mean 73 and standard deviation of 13 for an English…

A:

Q: The amount of time spent in prison has a mean of 5.2 years and a standard deviation of 1.3 years. A…

A: Given: Population mean μ = 5.2 years Population standard deviation σ = 1.3 years n = 16 Significance…

Q: A certain fast-food chain sells cheeseburger. On a typical weekday, the demand for these burgers can…

A:

Q: The mean length of a human pregnancy is 269 days, with a standard deviation of 10 days. Use the…

A: According to empirical rule.

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

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Q: The volume of cracker boxes are normally distributed, with a mean of 7 oz and a standard deviation…

A: Obtain the standard z-score for  equals 6.5. The standard z-score for equals 6.5 is obtained below:…

Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in…

A:

Q: In the United States the ages 13 to 55+ of smartphone users approximately follow a normal…

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Q: Calculate the standard error of prison time for the sample.

A: The amount of time spent in prison has a mean of 5.2 years and a standard deviation of 1.3 years.…