What is the probability of selecting a sample of n=16 scores with a mean greater than M=56?
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A: From the provided information, Mean (µ) = 85 Standard deviation (σ) = 24 X~N (85, 24)
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A: Given information Mean µ = 28 Standard deviation σ = 2.5 Using standard normal table,
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A: Using z-score table to calculating above. Z-score=(X-mean)/standard deviation
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A: Given: μ=70 and σ=10. The z-score is calculated as-z=x-μσ
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A: Given that a normal distribution has a mean of 20 and a standard deviation of 4. We need to…
Q: A normal distribution has a mean of μ =64 and a standard deviation of σ = 8. What is the probability…
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A: Given, μ = 450σ = 150To find,P (X > 700) = ?
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A: A normal distribution is also called Gaussian distribution which has bell shaped curve. The normal…
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A: The random variable X follows normal distribution. The population mean is 126 and population…
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Q: A random sample of n = 4 scores is obtained from a population with a mean of µ = 80 and a standard…
A: Solution: From the given information, n=4, µ=80, σ=10 and M=90.
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Q: A normal distribution has a mean of µ = 70 with σ = 12. If one score is randomly selected from this…
A: According to the provided information,
Q: A normal distribution has a mean of μ =72 and a standard deviation of σ = 8. What is the probability…
A: Given, μ=72σ=8n=36M=x=72
Q: If a normal distribution has a mean of 28.0 and a standard deviation of 2.5, what is the value of…
A: It is given that the mean is 28 and the standard deviation is 2.5.
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Q: In a normal distribution, mean is 60 and standard deviation is 5. How many of the cases have scores…
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A: Given information Mean (µ) = 98.6 F Standard deviation (σ) = 0.73 F Probability of a healthy adult…
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A: Given : Margin of error, ME = 0.05 population standard deviation, σ = 0.015…
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A: A normal distribution has a mean of 113 and a standard deviation of 6.
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A: Given: µ = 80 σ = 10
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A: It is given that X follows N(mean = 72, SD = 12), then Z = (X - mean)/SD follows N(0,1)
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Q: For a normally distributed random varible y, mean is 25 and standard deviation is 9. Find the z…
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Q: Suppose x is a value in a normal distribution, with a mean of 12, and standard deviation of 4, What…
A: Given: x=4μ=12σ=4 The z score of x=4 is obtained as follows: Z=x-μσ=4-124=-84=-2 Thus, the z-score…
Q: A population forms a normal distribution with a mean of 85 and a standard deviation of 24 compute…
A: The mean is 85 and the standard deviation is 24.
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A: sample size: n = 16mean: µ = 75 standard deviation: σ = 20 To find c such that, P( x¯ <c )…
Q: A normal distribution has a mean of μ =72 and a standard deviation of σ = 8. What is the probability…
A: The formula for z-score for sample is, Z=M-μσn In the formula, M is the sample mean, μ is the…
Q: A normal distribution has a mean of 54, and a standard deviation of 6. What is the probability of…
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Q: In a normal distribution with a mean of 72 and a standard deviation of 12: What percentage of…
A: Given that , mean = μ = 72 standard deviation = σ = 12
Q: A normal distribution has a mean of μ= 54 and a standard deviation of σ=6 What is the probability of…
A: A normal distribution has a mean of μ= 54 and a standard deviation of σ=6. Sample size, n = 4
Q: A normal distribution has a mean of 60 and a standard deviation of 2. Determine the z-score for the…
A: Given data, Mean=60 sd=2 x=22 z=?
Q: The random variable X is normally distributed with a mean of 80 and a standard deviation of 10,…
A: X is normally distributed with mean 80 and standard deviation 10, The P85≤X≤90 is obtained as below…
Q: The mean weight of 18-year-old females is 126 pounds, and the standard deviation is 15.7. If a…
A: Here it is given that the mean weight of 18 year old females is normally distributed with mean=126,…
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A: For the solution of the problem follow the next step.
Q: A normal distribution has a mean of 77 and a standard deviation of 6. Find the z-score for a data…
A: z score: Consider X as a normally distributed random variable, with mean μ and standard deviation…
Q: A normal distribution has a mean of 103 and a standard deviation of 3. Find the z-score for a data…
A: Solution: From the given information, µ=103 and σ=3.
Q: A normal distribution has a mean of µ = 40 with σ = 8. If one score is randomly selected from this…
A: A normal distribution has a mean of µ = 40 with σ = 8.
A
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