The mean weight of 500 male students at a certain college is 158lb and the standard deviation is 16 Ib. Assuming that weights are normally distributed, find how many students weigh; Between 140 and 160 а. 200 b. 225 с. 65 d. 210 More than 160 а.225 b. 65 C. 210 d. 200 Less than 140 а. 225 b. 200 С.65 d. 210

Q: Given a sample with a mean of 57 and a standard deviation of 14, find x such that Pr(X < x) = 0.022.…

A:

Q: Assume that the weights of quarters are normally distributed with a mean of 5.67g and a standard…

A:

Q: For a recent SAT reading/writing test which is distributed normally with a mean of 533 and standard…

A: As per Bartleby's answering policy, we can answer only one question with a maximum of three…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: Given a sample with a mean of 151 and a standard deviation of 27, find the probability that a…

A:

Q: A random sample of 30 packages for delivery in a store has an average weight of 305 grams. Assume…

A: (1) Obtain the standard error of the point estimate of the population mean. The standard error of…

Q: Given that X is normally distributed with a mean of 50 and a standard deviation of 4, determine the…

A:

Q: A random sample of 40 students has a mean annual earnings of​ $3120 and assume that the population…

A: The assumed margin of error for a provided true standard deviation and a large sample (i.e n&gt;30)…

Q: If the average height of 500 students in a secondary school is 151 cm, with a standard deviation of…

A: GivenMean(μ)=151standard deviation(σ)=15

Q: If the standard deviation of a population is 20 and we take a sample of size 16 from which to…

A: Given information Standard deviation σ = 20 Sample size n = 16

Q: population with a standard deviation of 20, how large a sample is necessary to have a standard error

A: Given that  Population with standard deviation (σ) = 20   We know that  Standard error (SE) = σn…

Q: Given a sample with a mean of 94 and a standard deviation of 17, find x such that Pr(X > x) = 0.282.…

A: Given a sample with a mean of 94 and a standard deviation of 17, find x such that Pr(X &gt; x) =…

Q: Given a sample with a mean of 151 and a standard deviation of 27, find x such that Pr(X > x) =…

A:

Q: given the normally distributed variable xwith the mean 50 and standard deviation 7, find p (56]x[68)

A: Given: μ=50 and σ=7. The z-score is calculated as-z=x-μσ

Q: r at a local zoo is 15.8lbs, with a standard deviation  of 2.4lbs. A researcher records the weight…

A: The table that shows the necessary calculation is shown below:   XX X^2X2 1 14.5 210.25 2…

Q: A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2…

A: Mean = 39 Standard deviation = 2

Q: Given a sample with a mean of 57 and a standard deviation of 14, find x such that Pr(X < x) = 0.752.…

A: We have to find x for given data.

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A:

Q: The weights of all newborn babies are normally distributed with a mean of 8 pounds and a standard…

A:

Q: A sample with a mean of M = 62 and a standard deviation of s = 5 is transformed into a standardized…

A: It is given that the sample mean M =62 and the standard deviation s is 5.

Q: For samples of the specified size from the population described, find the mean and standard…

A:

Q: A normally distributed population has a mean of 88 and a standard deviation of 10. When a sample of…

A: Here the given population mean is 88 and population standard deviation is 10.

Q: If the average height of 500 students in a secondary school is 151 cm, and the standard deviation is…

A: Given: N = 500 μ = 151 cm σ 15 cm   Formula Used: Z-score = X-μσ

Q: length of pregnancies are normally distributed with a mean of 266 days and a standard deviation of…

A: A baby will be considered premature if he borns at least 3 weeks ago. Means 21 days ago

Q: o lead et- The body temperatures of a group of healthy adults have a bell-shaped distribution with a…

A: Empirical rule: According to the empirical rule, approximately 68% of the data set falls within one…

Q: For samples of the specified size from the population described, find the mean and standard…

A: From the provided information, Mean (µ) = 75 Standard deviation (σ) = 14 X~N (75, 14)

Q: Given a sample with a mean of 151 and a standard deviation of 27, find x such that Pr(X > x) =…

A:

Q: Suppose that the weights of adult males have a mean of 60kls and standard deviation of 18 kg.…

A: Given,mean(μ)=60standard deviation(σ)=18 Sample size(n)=40

Q: In a given year, the average annual salary of an NFL football player is $189,000 with a standard…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: For stanadrd normal distribution, Mean = 0 and the stanadrd deviation = 1. Draw the normal curve…

Q: A given distribution has a population mean, μ, of 101 and a population standard deviation, σ, of 11.…

A: According to the given information, we have Mean = 101  and  Standard deviation = 11 Z score = 2.41

Q: Given that X is normally distributed with a mean of 50 and a standard deviation of 4, determine P(45…

A:

Q: Given that x represents the random variable for mass of potatoes and is approximately normally…

A:

Q: Given a sample with a mean of 78 and a standard deviation of 14, find x such that Pr(X < x) = 0.70.…

A: We have to find x such that Pr(X &lt; x) = 0.70

Q: "The weights of 1,000 children, in average, is 46kg with standard deviation of 11kg. Suppose the…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Given the population of men has normally distributed weights with a mean of 172 lb and a standard…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the given information, let X be the readings of thermometers. Mean reading of the thermometer…

Q: A population has a mean of 200 and a standard deviation of 50. Suppose a simple random sample of…

A:

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X >…

A: GivenMean(μ)=35standard deviation(σ)=7.5

Q: A population has a mean of 60 and a standard deviation of 18. A sample of 81 observations will be…

A:

Q: Given that x ( = flight times between cities A and B) follows a normal distribution with a mean of…

A: GivenMean(μ)=64standard deviation(σ)=2.5

Q: mple with a mean of M=62 and a standard deviation of s= 5 is transformed into a standardized…

A: The formula of z score is: Given: A sample with a mean of M=62 and a standard deviation of s= 5 is…

Q: EN: POPULATION MEAN: 94.60 AND POPULATION STANDARD DEVIATION: 2.3324 What is the percentage that a…

A:

Q: The mean life of a tire is 30,000 km. The standard deviation is 2000 km. Then, 95% of all tires will…

A: We have to find raw scores for given data.

Q: Given a sample with a mean of 151 and a standard deviation of 27, find x such that Pr(X < x) =…

A: From the given information we want to find the value of X.

Q: Given X is a normally distributed random variable with a mean of 155 and a standard deviation of…

A:

Q: The average score on a communications exam was found to be 82 with a standard deviation of 5 points.…

A: From the provided information, Mean (µ) = 82 Standard deviation (σ) = 5 X~N (82, 5) Here X be a…

Q: Given a test that is normally distributed with a mean of 100 and a standard deviation of 12, find:…

A:

Q: Given a sample with a mean of 151 and a standard deviation of 27, find x such that Pr(X > x) =…

A:

Q: For a population with a mean of μ= 50 and a standard  deviation of σ= 10, compute the standard error…

A: Given data: Let X be any randomly selected score from a normal population with mean and standard…