The percent of fat calories that a person in American consumes each day Is normally distributed with a mean of about 36 and a standard deviation of about 10. Suppose that 16 individuals are randomly chosen. Let X=average percent of fat calories.  a. For the group of 16, find the probability that the average percent of fat calories consumed is more than 5. b. Find the first quartile for the average percent of fat calories.

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A:

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Q: In a Statistics course the professor uses the following grading policy: the bottom 5% of students…

A: Given that  b .Find the probability that a randomly selected student gets an 80 or better? c.…

Q: The percent of fat calories that a person consumes each day is normally distributed with a mean of…

A: Solution: Let X be the average percent of fat calories. From the given information, X follows normal…

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A: From the given information, the  mean birth weight for boys is 3.41 kg and the standard deviation is…

Q: Find U, V, W, and the percentage total of the shaded region.

A: Here use basics of standard normal distribution and empirical Rule

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A: Given,μ=0σ=1 P(Z<z)=0.29

Q: me that a randomly selected subject is given a bone density test. Those test scores are normally…

A: test scores are normally distributed with a mean of 0 and a standard deviation of 1  find the…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Finding the value of z at lowest 14-1.08032 ( From Excel =NORM.S.INV(0.14))Finding the value of z at…

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A:

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: Using the formulas, calculate the (i) mean and (ii) standard deviation of X.

A: Let p be the probability of shot that scored points. Given that p = 61.3% = 0.613 Given that X= the…

Q: Let x be a ramdom variable that represents the IQ score of an adult . Then x has a normal…

A: The z-score denotes how many standard deviations an individual score is away from the population…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 X~N (0, 1) Here X be a random…

Q: Here are the weights of the bass from Tina’s sample: 12, 9, 15, 10, and 11.  We do not know the…

A:

Q: Let X = { 1,2,6,9,11}. Find the mean and standard deviation given that X is a sample. %3!

A: The mean for the sample is calculated as follows:

Q: Total plasma volume is important in determining the required plasma component in blood replacement…

A: given that,population standard deviation, σ =7.5sample mean, x =36.7size (n)=50

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: The length of a fully grown hibiscus plants is normally distributed and has a mean of 35cm and a…

A: Given that,Mean(μ)=35standard deviation(σ)=4     The random variable  is length of fully grown…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Here, µ=0°C, σ=1.00°C.

Q: For a population with a mean of 75 and a standard deviation of 4, find the Z Score for an X Score of…

A: Given,population mean(μ)=75population standard deviation(σ)=4Raw score(X)=73

Q: Let x be a ramdom variable that represents the IQ score of an adult. Then x has a normal…

A: The mean of the data is 100. The standard deviation of the data is 25.

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Let X denote the readings at freezing on a bundle of thermometers are normally distributed with a…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the given information, the readings at freezing on a batch of thermometers are normally…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: For the standard normal distribution, the Mean is 0 and the standard deviation 1. Draw the normal…

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Q: The length of a fully grown hibiscus plant is normally distributed and has a mean of 35cm and a…

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A: Obtain the 7th percentile of the distribution.   The 7thpercentile of the distribution is obtained…

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

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Q: A set of final examination grades in an Introductory Statistics course is normally distributed with…

A: We have given that,  X be the test score with mean (μ) = 73 and standard deviation (σ) = 8 and The…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given that  A batch of thermometers are normally distributed . Mean ( μ) =  0°C  Standard deviation…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

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Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: Assume that the distribution of an employee selection test is normally distributed with a mean of 82…

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Method: Normal distribution

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

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Q: As part of a study, 800 college football players are randomly chosen and their weights taken. The…

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

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Q: is randomly selected and tested. Find P80, the 80-percentile. This is the temperature reading…

A: It is given that  Mean, μ = 0 Standard deviation, σ = 1

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.