While checking receipts at Reds, it was determined that the average amount spent on       food per table was $21.50 with a standard deviation of $2.22. If we can assume that     the amount of money spent was Normally distributed, what is the probability that the    average of 8 checks is between $20 and $24?

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

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Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 31…

A: P(X>30)=1-Pz<30-311045=1-P(z<-0.67)=1-0.2514=0.7486

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Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56…

A: Since you have posted multiple question, we only provide answers of first three subparts . Please…

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

A: Provided information is ; Let X be the monthly utility bill mean(μ) = 100 standard deviation(σ)=15…

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A: Given, E(X)=60 SD(X)=12   After 10 Point curve Let Y be new variable.

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A: Given, mean, μ= 175.9 minutes standard deviation,  = 27 minutes n = 30

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Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

A: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of 56…

A: From the provided information, Mean (µ) = 56 Standard deviation (σ) = 3.2 Let X be a random variable…

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

A:

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A: Here, mean is $100 and standard deviation is $14.

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

A:

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Q: the breaking of a particular rope is normally distributed, with the mean of 350 lbs. and a standard…

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Q: The heights of 18 year-old men are approximately normally distributed, with a mean 68 inches and a…

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Q: In a recent​ year, the scores for the reading portion of a test were normally​ distributed, with a…

A: Given data,μ=22.9σ=6.7P(X<18)=?

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

A:

Q: Based on data from the National Health Board, weights of men are normally distributed with a mean of…

A:

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A: Given, µ=90 σ=24 n=36

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

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Q: According to the children’s growth chart that doctors use as a reference, the heights of…

A:

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A: Given,   Mean = 191 Standard deviation = 49

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of 57…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Brooke Henderson of the LPGA, who just won her second major last weekend, layed a round of golf and…

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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.