11. A sample of n = 20 scores has a mean of M = 32 and a standard deviation of s= 6. In this sample, what is the z-score corresponding to X = 28? a. z = +1.50 b. z=-1.00 C7-- c-

Q: Suppose that a distribution of 400 items has mean 130 and standard deviation 5. Find the​ z-score of…

A: Given that.   X~N( μ , ?)   μ=130     , ?=5  , x=143   Z-score =( x - μ )/?

Q: A sample with M = 85 and s = 12 is transformed into z-scores. After the transformation, what are the…

A: According to the sum, a sample with M = 85 and s = 12 is transformed into z-scores.M = sample mean=…

Q: A sample of n=25 scores has a mean of 68. Find the z-score for this sample. If it was obtained from…

A:

Q: A sample has a mean M = 55. In the sample, a score of X = 48 corresponds to z = -1.20. What is the…

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Q: Assume the cholesterol levels in a certain population have mean µ= 200 and standard deviation σ =…

A: According to the given information in this question We need to find z score for a sample mean of 180…

Q: ant nursery, the owner thinks that the lengths of seedlings in a box sprayed with a new kind of…

A: Hypothesis testing is conducted for the parameters of the population, like population mean,…

Q: On a recent calculus exam, a class mean was 73 with a standard deviation of 2.7. Calculate the…

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Q: A variable is normally distributed with a hypothesized population mean of 53 and a standard…

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Q: The data has a mean of 27 and a standard deviation of 3.8, rounded to the nearest tenth. How many of…

A: Given that  a data has a mean μ = 27                                  standard…

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: z-score is evaluated for normal curve. The shape of the curve is bell shaped. Total area under this…

Q: sample has a mean M = 89. In the sample, a score of X = 6 corresponds to z = 2. What is the standard…

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Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: 16. Solution: Let X be the height of an adult man. From the given information, X has mean µ=69…

Q: For a sample with M = 90, a score of X = 88 corresponds to z = -1.00. What is the sample standard…

A: Solution-: Given: M=90, X=88, z=-1 We want to find the sample standard deviation?​

Q: A normal distribution of scores representing ones fear of crime is analyzed.  Higher scores indicate…

A: The question is about normal distribution.Given :Population mean score (  ) = 6Population standard…

Q: For a population with a standard deviation of 20, what is the zscore corresponding to a score that…

A: The population standard deviation is 20. The z-score corresponding to a score that is 5 points below…

Q: A simple random sample of 40 items resulted in a sample mean of 25. The population standard…

A: Givensample size(n)=40sample Mean(x)=25standard deviation(σ)=5

Q: What is the z-score of x = 11, if it is 2.5 standard deviations to the left of the mean?

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Q: If a sample has a mean of 48 and a standard deviation of 3.2, what is the value in the set that…

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Q: An original population of scores with a mean = 50 and SD = 6 is standardized to create a new…

A: given data  1 represents original population 2 reperesents new distributionμ1 = 50μ2 = 80σ1 = 6σ2 =…

Q: A sample of n=25 scores has a mean of 68. Find the z-score for this sample. If it was obtained from…

A:

Q: A sample of n = 20 scores has a mean of M = 32 and a standard deviation of s = 6. In this sample,…

A: We have to find z score for x= 28....

Q: A sample has a mean M = 55. In the sample, a score of X = 48 corresponds to z = -1.50. What is the…

A:

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: The normal distribution is the most useful theoretical distribution for continuous variable.  For…

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: It is given that the mean and standard deviation are 69.0 and 2.8. The z-score is 0.5357.

Q: What is the ∑X for this sample

A: A sample of size is denoted by n. mean is nothing but the average of given sample observations. Here…

Q: What is the z-score of x = 9, if it is 0.133 standard deviations to the left of the mean?

A: Given X=9,

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Let "X" be the combined SAT scores for the students at a local high school

Q: A sample of n=25 scores has a mean of 68. Find the z-score for this sample:   If it was obtained…

A:

Q: On a recent quiz, the class mean was 75 with a standard deviation of 3.5. Calculate the z-score (to…

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Q: For a population with population mean 80 and standard deviation10, what is the z-score corresponding…

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Q: Suppose X, the grade on a midterm exam, is normally distributed with mean 80 and standard deviation…

A: Given information- Population mean, μ = 80 Population standard deviation, σ = 10 Suppose X is the…

Q: IQ scores based on the Wechsler Adult Intelligence Scale are assumed to be normally distributed with…

A: Given,mean(μ)=100standard deviation(σ)=15IQ score (X)=90

Q: For a sample with a standard deviation of s=4, a score of X=35 corresponds to Z= -1.25. what is the…

A: Given,standard deviation(s)=4a score(X)=35Z-score=-1.25

Q: A z-score of +1.6 represents a value which is how many standard deviations above the mean?

A: