A normal distribution has a mean of 117 and a standard deviation of 4. Find the z-score for a data value of 125.  Round to two decimal places

Q: A normal distribution has a mean of 140 and a standard deviation of 3. Find the z-score for a data…

A: The objective of this question is to calculate the z-score for a data value of 142 in a normal…

Q: Find the 75th percentile of the heights, in inches.

A: Let X denote the heights in a population of adult women. Given that X follows N(mean = 62.5, SD =…

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

A:

Q: The mean yearly rainfall in Sydney, Australia, is about 137 mm and the standard deviation is about…

A: Given Mean =137 Standard deviations=69

Q: Consider a normal distribution with a mean value of 100 and a standard deviation of 5. Find the…

A:

Q: Find the range and the standard deviation (correct to two decimal places). 86, 97, 101, 101, 105…

A:

Q: Find the range and the standard deviation (correct to two decimal places). 80, 91, 94, 94, 101…

A: Formula: A) Range = Maximum value - Minimum value B)Standard deviation :

Q: Fluorescent lighbulbs have lifetimes that are normally distributed with a mean of 6.1 years and a…

A: Step 1:The lifetime of fluorescent lightbulbs is normally distributed.mean(μ)=6.1 yearstandrad…

Q: A normal distribution has a mean of 93 and a standard deviation of 5. Find the z-score for a data…

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Q: Use the range rule of thumb to estimate the standard deviation. Round results to the nearest tenth.…

A: Range = Maximum - Minimum

Q: You deal with unknown shape distribution. Standard deviation calculated to be 11. Find what…

A: Here in the question, it is given that we deal with an unknown shape distribution. Standard…

Q: Given a normal distribution with mean 100 and standard deviation​ 10, find the number of standard…

A:

Q: A normal distribution has a mean of 85.8 and a standard deviation of 4.89. Find the data value…

A: Given,mean(μ)=85.8standard deviation(σ)=4.89z=2.75

Q: Pages in Romance Novels. A copyeditor thinks the standard deviation for the number of pages in a…

A:

Q: A test is scaled so that the mean score is 490 and the standard deviation is 100. What percentage of…

A: Given information μ=490 And σ=100 We have to find the percentage of students taking this test should…

Q: A normal distribution has a mean of 126 and a standard deviation of 10. Find the z-score for a data…

A: The random variable X follows normal distribution. The population mean is 126 and population…

Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…

A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…

Q: The scores on a mathematics exam have a mean of  66  and a standard deviation of  7 . Find the  x…

A: Mean =M=66, standard deviations σ=7  Note:: According to Bartleby guidelines expert solve only one…

Q: A distribution of values is normal with a mean of 33.6 and a standard deviation of 76.4. Find the…

A: X has a normally distributed with a mean(μ)=33.6    and a standard deviation(σ) = 76.4

Q: A normal distribution has a mean of 109 and a standard deviation of 4. Find the z-score for a data…

A: Let X be the random variable from normal distribution with mean (μ) = 109, standard deviation (σ) =…

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A: It is given that The cumulative area is 0.051

Q: Given a normal distribution with mean 100 and standard deviation 10, find the number of standard…

A: We have given that  Mean(µ) = 100Standard deviations (σ) = 10X ~ N (µ, σ)= N(100, 10)

Q: Find the range and the standard deviation (correct to two decimal places). 85, 95, 101, 101, 103…

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Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

A:

Q: A normal distribution has a mean of 100 and a standard deviation of 7. Find the z-score for a data…

A: The mean is 100 and standard deviation is 7.

Q: Use a table of cumulative areas under the normal curve to find the​ z-score that corresponds to the…

A: The cumulative area is 0.047.

Q: A normal distribution has a mean of 150 and a standard deviation of 9. Find the z-score for a data…

A: Suppose the variable of interest is x.The random variable x follows normal distribution with mean…

Q: A normal distribution has a mean of 77 and a standard deviation of 6. Find the z-score for a data…

A: From the provided information, Mean (µ) = 77 Standard deviation (σ) = 6 X~N (77, 6)

Q: A distribution of values is normal with a mean of 218.6 and a standard deviation of 33.6. Find…

A: It is given that  Mean, μ = 218.6 Standard deviation, σ = 33.6

Q: Given a normal distribution with mean 100 and standard deviation 10, find the number of standard…

A: Given a normal distribution with mean 100 and standard deviation 10. The measurement is X=111.1.

Q: A normal distribution has a mean of 125 and a standard deviation of 3. Find the z-score for a data…

A: A normal distribution has a mean of 125 and a standard deviation of 3. mu

Q: A data set have a mean of 1.7 and a standard deviation of 0.4. Find the value with a z-score of…

A: GivenMean(μ)=1.7standard deviation(σ)=0.4x=1.25

Q: standard deviation is s = 30. Determine the test statistic for this test.

A:

Q: A normal distribution has a mean of 103 and a standard deviation of 7. Find the z-score for a data…

A: Given: μ =103 & σ=7 the z-score corresponding to 100 is   Z=100-μσ =100-1037= - 0.43

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A:

Q: A normal distribution has a mean of 144 and a standard deviation of 8. Find the z-score for a data…

A: Given that, μ=144, σ=8 We know that, z-score is given as, Z=X-μσ

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A: from given data we have : z-score = 0.051