2. A distribution has a standard deviation of o = 10. Find the z-score for each of the following locations in the distribution. a. Above the mean by 5 points. b. Above the mean by 2 points. c. Below the mean by 20 points. d. Below the mean by 15 points.

Q: The average amount of money spent for lunch per person in the college cafeteria is $6.2 and the…

A: Here, 43 samples are collected. b.) Hence, if the sample mean is denoted by x, then, x~N(μ,σ2n),…

Q: Next c A variable is normally distributed with mean 12 and standard deviation 2. a. Find the…

A:

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Q: The following data give the prices (in thousands of dollars) of 6 homes that were sold in a small…

A: Solution: Let X be the price. The given data is 195, 205, 219, 265, 283 and 825.

Q: Which of the following statement is NOT true about a z-score? A. Z-scores are always between -3 and…

A: Here we have to identify which of the following statement is not correct

Q: 1. The height of B00 men form a normat distribution with a mean of 165 cm and a standard deviation…

A: Given that 150 men are between 160 and 170.160 and 170 are equidistant from the mean 165.So, there…

Q: What information can you get from a person’s z-score? a. Whether they are above or below the mean b.…

A: Solution

Q: Which of the following z scores are above the mean? Choose all that apply.     0     1.35…

A: For normal distribution, the mean is equal to 0

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: From the above graph we can see that, it is symmetric the mean =median= mode= 20 i.e. mid point of…

Q: Show your work to find the value that is 1.5 standard deviations: a. above the mean. b. below the…

A: From the obtained results, the mean is 9.02 and the standard deviation is 5.7910.

Q: Given the sample mean= 62 and sample standard deviation = 8. Find the z-scores that correspond to…

A: Given the sample mean=62 and sample standard deviation=8. We need to find the z-scores that…

Q: . Tree heights: Cherry trees in a certain orchard have heights that are normally distributed w mean…

A: According to the given information in this questionWe need to answer two parts

Q: 11. Sixteen men and sixteen women purchased magazine subscriptions. The distribution of prices had…

A: Given that  Sixteen men and sixteen women purchased magazine subscriptions. The distribution of…

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

A:

Q: Use the standard normal distribution to compare two other normal distributions. 25. Blood pressure…

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Q: 14. A normal distribution has a mean of µ = 50 and a standard deviation of o = 5. For each of the…

A: It is given that the mean is 50 and the standard deviation is 5.

Q: One graph in the figure represents a normal distribution with mean u= 15 and standard deviation o =…

A: Given: One graph has μ=15 and σ=2.Another graph has μ=11 and σ=2.

Q: Find the area of the shaded region.

A: here as per guidelines i have calculated first main question repost for remaining scores are…

Q: 1. A variable is normally distributed with a mean of 25 and a standard deviation of 6. Find the…

A: A variable is normally distributed with a mean of 25 and a standard deviation of 6.

Q: 4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A…

A: The proportion of a standard normal distribution which is located between mean and z = 1.40 is given…

Q: 6. For the following set of scores, fill in the cells. The mean is 74.13, and the standard deviation…

A: Some raw scores and corresponding z scores are given.Suppose the random variable x defines the raw…

Q: 3. The random variable X has a normal distribution with mean 80 and standard deviation 6. Choose…

A: Sampling distribution of a statistic is known as the probability distribution of all the possible…

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

A:

Q: The average amount of money spent for lunch per person in the college cafeteria is $5.54 and the…

A: Solution: b. Let X be the money spent. From the given information, X follows normal distribution…