Suppose the mathematics SAT scores are normally distributed with a mean of 500 and a standard deviation of 100, and the ACT scores are normally distributed with a mean of 18 and a standard deviation of 6. If a school only accepts students with ACT scores in the top 20 percent, what is the approximate minimum ACT score that would be acceptable for that school. 10 26 13 23

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A:

Q: Suppose for a given month, the mean daily closing price for stock A was 107.66 and the standard…

A: Given For A) Mean=107.66 Standard deviations=10.7 For B) Mean=74.11 Standard deviations=7.6

Q: 1. Suppose that the mean of A is 360 and the standard deviation of A is 40. The mean of B is 45 and…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

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Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: Formula : Z =(X - μ)/σ

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A:

Q: a. A student whose grade is 83 would be at the 19th percentile. b. A student whose grade is 90 would…

A: According to our guidelines, we can answer only three subparts, so please repost the rest parts.

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A: It is an important part of statistics. It is widely used.

Q: Suppose that the heights of 4-year old boys are normally distributed with a mean of 103cm and a…

A: Given that, X: height of the 4-year old boy Mean : μ=103 cmStandard deviation σ =4.05 cm

Q: Suppose the people living in a city have a mean score of 40 and a standard deviation of 7 n a…

A: We have given that  Mean=mu=40  Standard deviation=sigma=7

Q: Suppose the weight of dogs is normally distributed with a mean of 35 pounds and a standard deviation…

A: Given,   Mean = 35 Standard deviation = 5   The objective is to find the probability a dog weighs…

Q: The book Investments by Zvi Bodie, Alex Kane, and Alan Marcus claims that the returns for investment…

A: 1] Standard deviation for the first portfolio=0.55 2] Standard deviation for the second…

Q: A college professor noted that the grades of his students in an introductory statistics class were…

A: Given,mean(μ)=28.50standard deviation(σ)=9

Q: Suppose you know that the distribution of sample proportions of nonresidents in samples of 200…

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Q: Suppose a company produces lightbulbs with a mean lifetime of 1000 hours and a standard deviation of…

A: Given that, Mean= 1000 And standard deviation, sigma= 50 We know that, Z Score= (X-mu)/sigma

Q: Suppose a random sample of 25 measurements was taken from a population with a mean of 74 and a…

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Q: uppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

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A: Given data ,Mean μ=7.6S.Dσ=0.5What is min % b/w 6.1 and 9.1 ?

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A: Given  μ= Mean of test score from a college admission test = 450 σ= Standard deviation of test score…

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Q: 21 year old men rates at rest are normally distributed with a mean of 70 beats per minute, and a…

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Q: 2. Suppose golfer Michelle Wie has an average driving distance of 269.1 yards, with a standard…

A: X~N( μ = 269.1  , ? = 13.8) μ = 269.1 , ? = 13.8 Z-score =( x - μ )/? Note: According to bartleby…

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Q: Suppose the mathematics SAT scores are normally distributed with a mean of 500 and a standard…

A: Given that  X~Normal(μ =500 , ? =100) X=SAT score  Z-score=(X-μ)/?

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A: Given Information Mean µ = 2500 Standard deviation(σ) = 400 P (Z > z) = 0.975 P(Z<z) = 1 –…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: We have given that,  Hypothesized mean = 3.3 , Mean = 3.2 , SD = 1.06 , Sample size = 50 , At…

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Q: Suppose that prices of a certain model of new homes are normally distributed with a mean of…

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Q: A college professor noted that the grades of his students in an introductory statistics class were…

A: Given that, Mean = 52.50 Standard deviation = 9

Q: Suppose that Jett achieves a score of 1250 on the SAT, and his sister Kate scores 29 on the ACT. The…

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Q: A population has a mean of u=50 and a standard deviation of 0=10. If 3 points were added to every…

A: The properties of mean are:E(X + a) = E( X ) + a * E(X+a)=E(X)+aE(aX)=aE(X)The property of variance…

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Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

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Q: Suppose that the scores on a statewide standardized test are normally distributed with a mean of 68…

A: As per our guideline we are supposed to answer only  3 sub-parts of any question

Q: Suppose that the amount of time that takes place for the Bureau of Internal Revenue to send refunds…

A: Solution: 4. Let X be the amount of time. From the given information, X follows normal distribution…