population of values has a normal distribution with μ=26μ=26 and σ=44.4σ=44.4. You intend to draw a random sample of size n=231n=231. Find the probability that a single randomly selected value is between 31.8 and 35.1. P(31.8 < X < 35.1) =  Find the probability that a sample of size n=231n=231 is randomly selected with a mean between 31.8 and 35.1. P(31.8 < M < 35.1) =  Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Q: A population of values has a normal distribution with μ=55.7μ=55.7 and σ=22.6σ=22.6. You intend to…

A: We know that; X1, X2,..., Xn~Normal(μ,σ2)⇒X¯~Normalμ,σ2n⇒Z=X¯-μσn~Normal0,1

Q: population of values has a normal distribution with μ=198.2μ=198.2 and σ=35.4σ=35.4. You intend to…

A: Let the random X follows normal distribution with μ=198.2 and σ=35.4 The random sample size is, n =…

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A: The objective of this question is to find the probability that a sample of size n=17 is randomly…

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A:

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Q: A population was found to have a mean of µ =75 and standard deviation of σ =2.3. If you took every…

A: Given information- Population mean µ = 75 Population standard deviation, σ = 2.3 Sample size, n = 10

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A:

Q: Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic…

A: Given, Let X= 4.9, 4.2, 4.5, 4.1, 4.4, 4.3

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A: Given data, μ=142.9  σ=7.5 n=143 P(X&lt;x)=0.57 x=?

Q: A population of values has a normal distribution with μ=248.6�=248.6 and σ=97.6�=97.6. You intend to…

A: μ=248.6σ=97.6n=246

Q: Suppose random variable X has a normal distribution with a mean of 98.2 and the standard deviation…

A: According to the given information, we have Mean = 98.2 Standard deviation = 3.2

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A:

Q: Suppose the random variable xx has a normal distribution with μ=300μ=300 and σ=30σ=30. Find the…

A: Given: μ=300, σ=30.

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A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic…

A: Answer Given The population mean= 4.78This is left-tailed test.

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A:

Q: Suppose X be a normally distributed random variable with unknown mean μ and a standard deviation of…

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Q: A population of values has a normal distribution with μ = 198.2 and a = 35.4. You intend to draw a…

A:

Q: A normal distribution has a mean of µ = 24 with σ = 3. What is the minimum score needed to be in the…

A: given data  normal distribution μ = 24σ = 3 to be in top 14% minimum required score = ?

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A: given data, normal distributionμ=242σ=17we have to find out the given probabilties.

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A: we have  given that  mu=14 ,sigma=28 and n=53 X~N( mu=14 ,sigma^2=28^2) Zscore = (x-mu)/sigma

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A: From the provided information, Expected value of a random variable X is 140 and standard deviation…

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A: Given that μ=109, σ=42 and n=230

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A: The population values follows a normal distribution Mean (μ ) = 147.4 Standard deviation (σ) = 92.7…

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A:

Q: A population of values has a normal distribution with μ=86.1μ=86.1 and σ=46.3σ=46.3. You intend to…

A: 88th implies area of 0.88 to the left of the normal curve. Refer Standard normal table/Z-table,…

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A: (i)   Use TI-83 plus Calculator to obtain the values of sample mean and the standard deviation.…

Q: A population of values has a normal distribution with u = 190.9 and o = 93.5. You intend to draw a…

A: We have given that.   X~N( μ , ?^2 )   μ= 190.9 , ? =93.5 , n=229   Z-score =( x - μ )/?

Q: Find the value separating the bottom 45% values from the top 55% values.   Find the sample mean…

A: The values separating from bottom 45% value from the top 55% values will be:

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Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15.  When selecting…

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Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a…

A: given data population mean ( μ ) = 18population sd ( σ ) = 2sample size (n) = 13find mean of the…

Q: A population of values has a normal distribution with μ=110.5�=110.5 and σ=68.9�=68.9. You intend to…

A:

Q: A population of values has a normal distribution with μ=200.6μ=200.6 and σ=20.8σ=20.8. You intend to…

A:

Q: Suppose x has a distribution with a mean of 13.9 and a standard deviation of 2.1. Random samples of…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: A population of values has a normal distribution with μ=128 and σ=32.4 You intend to draw a random…

A: Here, μ=128, σ=32.4, and n=120.

Q: A population has a mean = 151 and a standard deviation a = 30. distribution of sample means with…

A:

Q: Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find…

A: Solution:From the given information, mean value is 50, standard deviation value is 7. Let the random…

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A:

Q: A population of values has a normal distribution with μ=248.6�=248.6 and σ=97.6�=97.6. You intend to…

A: normal distribution μ = 248.6σ = 97.6n = 246P29 = ?