The heights of students at a college are normally distributed with a mean of 175 cm and a standard deviation of 6 cm. One might expect in a sample of 1000 students that the number with heights less than 183 cm is? a. 92 b. 133 c. 408 d. 908

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: The number of goals scored by a college soccer team for a given season are 4, 9, 0, 1, 3, 12, 3, 7,…

A: The population mean is, μ=∑xN=4+9+0+1+3+12+3+7+4+5+8+212=5812=4.8333 The population mean is 4.8333.

Q: A survey found that women's heights are normally distributed with mean 63.6 in and standard…

A: Given Information: Mean μ=63.6 Standard deviation σ=2.5 A branch of the military requires​ women's…

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A: Suppose the random variable x defines the weekly poker winning amount.

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: we have given that mu=90 ,sigma=10 and sample size n=10  Z-score =(x-mu)/sigma X~N(mu, sigma^2)

Q: A successful basketball player height is 203 cm. His converts to the z score of 4.10. How many…

A: Consider, X = 203  z-score = 4.10 z-score is a numerical value that tells the number of standard…

Q: That is the difference between the weight of 5.33 lb and the mean of the weights? ow many standard…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 2.An environmental researcher took 30 water samples from different areas of a lake. He measured the…

A: Standard deviation of given sample points interprets how a group of numbers is spread out from the…

Q: Find the mean and the standard deviation for these ages. b) Draw the boxplot and explain what it…

A: When the data is provided , we can give insight to the data by doing certain plots . Also by…

Q: A large chemistry exam course took their final exam. The mean was 75 with a standard deviation of 8.…

A: Obtain the Z-score of the random variable X equals 60. The Z-score of the random variable X equals…

Q: O B. The number of babies that were born C. The number of births per capita D. The weights of the…

A:

Q: Given a mean of 24.5 and a standard deviation of 1.7, within how many standard deviations of the…

A: A mean of 24.5 and a standard deviation of 1.7

Q: U. What is tne probablity that a sample mean of 35 players will bê bêtwéén 69 and 70.5 in.? E Click…

A: A

Q: The mean height for women in the United States is approximately 64.5 inches with a standard…

A: Formula : Z =(X - μ)/σ

Q: Five students took a personality test. Their deviation scores were –4, +3, +1, –2, +2. Assuming that…

A: We have given the following deviation scores were –4, +3, +1, –2, +2 coming from a normal…

Q: Given that a data set has the following data values: 2, 4, 6, what would be the standard deviation?…

A: We have given that,  The data set are : 2, 4, 6 Then,  We will find the standard deviation (s) = ?

Q: the population standard deviation have to be in order for the standard error to be 1? 2 ? 5 ? 100

A: It is given that  Sample size, n = 36

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated.

A: Population standard deviation, σ =3 inches Sample size n=6

Q: As a group, the Dutch are among the tallest people in the world. The average Dutch man is 184 cm…

A: Given mean is 184 and standard deviation is 8.

Q: Suppose phone bills have a mean of $78 and a standard deviation of $8. How much would a phone bill…

A:

Q: uppose that the low daily temeprature is a mean of 25 degrees and a standard deviation of 12…

A: Given data,μ=25σ=12

Q: If the probability of defective bolt is 0.1, find the mean and the standard deviation for the number…

A: Given the probability of a defective bolt is, 0.1 That is, p=0.1 The total number of bolts is, n=400…

Q: Suppose that the weights of packages shipped by Atlas Shipping are normally distributed, with mean…

A:

Q: An engineer wishes to determine the width of a particular electronic component. If she knows that…

A: Assume that μ is the population mean width of a particular electronic component.

Q: On a university entrance exam, the scores are normally distributed. The mean is 184 and the standard…

A: Given X is normal Distributed with mean µ = 184.0 and standard deviation σ = 15.0 now will using…

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A: a)The empirical rule is used find the values. It is given that 68%. This value tells that…

Q: qualifying score to join the cheer team?

A:

Q: The length of 100 movies was recorded and the standard deviation was computed. This would be a:…

A: We have given that The length of 100 movies was recorded and the standard deviation was computed

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Solution-: Let, X= The widget weights Given: We find (a) 99.7% of the widget weights lie between…

Q: A survey found that women's heights are normally distributed with mean 62.2 in. and standard…

A: The mean and standard deviation of women’s are 62.2 in and 2.7 in. The minimum height is 4 ft 9…

Q: A sample data set has a mean of 72 and a standard deviation of 12. Determine whether each of the…

A:

Q: A survey found that​ women's heights are normally distributed with mean 63.2in. and standard…

A: a) From the provided information, Mean of women’s height (µ) = 63.2 in. Standard deviation (σ) = 2.7…

Q: The average person uses 130 gallons of water daily. If the standard deviation is 35 gallons , find…

A: Given that, Mean = 130 Standard deviation = 35 Sample size = 25

Q: As a group, the Dutch are among the tallest people in the world. The average Dutch man is 184 cm…

A: given data normal distribution μ = 184σ = 8P(170<x<180) = ?

Q: (a)  What is the level of significance? (Enter a number.) State the null and alternate hypotheses.…

A: Given: population mean = 4.30 sample standard deviation = 0.64 sample mean = 3.75 n=6 to find:…

Q: If the range of a data set is 64, find the approximate value of the standard deviation, using the…

A: Given information- Range = 64 We have to find the approximate value of the standard deviation using…

Q: Given the standard deviation of 7, what is the variance? a. 49 b. 7 c. square root of 7 d.…

A:

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm