1/If x represents a random variable with mean 107 and standard deviation 20, then the standard deviation of the sampling distribution of the means with sample size 100 is 2. True False

Q: Suppose that a random sample of size 100 is to be selected from a population with mean 50 and…

A: sample size =n=100Mean=μ=50Standard deviation=σ=6

Q: A random sample of size 36 is taken from a normal population having a mean of 90 and a standard…

A:

Q: the weights of adults living in the town of Metatuna is normally distributed, with a mean of 155…

A: Let X denote the  weights of adults living in the town of Metatuna is normally distributed, with a…

Q: The total amount spent on make-up by all the female students in a popular  private university has a…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: The percent of fat calories that a person in America consumes each day is normally distributed with…

A: GivenMean(μ)=37standard deviation(σ)=11Let "x" represents percent of fat calories

Q: A population with a mean of 1,200 and a standard deviation of 480 is known to be highly skewed to…

A:

Q: random variable X has a mean value of 20 with a standard deviation of 4.  If we obtain a random…

A: The probability that the sample average of X is at most 19 = P(X<=19) = 0.0228

Q: The average starting salary for a data analyst is Php 40,000 and a standard deviation of 5,000. A…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Suppose that replacement time for washing machines are normally distributed with  mean 9.3 years and…

A:

Q: The weights of a certain brand of candies are normally distributed with a mean weight of 0.8593 g…

A: The probability that it weighs more than 0.8539 g is obtained below: From the given information, the…

Q: The time that it takes for the next train to come follows a Uniform distribution with…

A:

Q: Women's heights are normally distributed with a mean given by µ = 63.6 in. and a standard deviation…

A:

Q: Suppose student test scores for a nationwide standardized test have an unknown distribution with…

A: Given M = 259 standard deviation = 33 x = 264.3      To determine,  What is the probability that the…

Q: For a random sample of n=16 selected from a normal distribution with a mean of µ =75 and a σ = 20,…

A: Determine the range that would be expected to find the middle 95% distribution of sample means. The…

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

A: Solution

Q: The distribution for the time a patient of a medical center spends waiting for an appointment is…

A:

Q: Suppose x has a distribution with a mean of 80 and a standard deviation of 12. Random samples of…

A:

Q: a.  What is the distribution of X? X ~ N(,) b.  Find the probability that a randomly selected fat…

A: The percent of fat calories that a person in America consumes each day is normally distributed with…

Q: a) What is the probability that a person selected at random spends more than 60 minutes on social…

A: time spent follows normal with mean 75 mins and standard deviation of 10 mins A p(time spent >…

Q: In the United States, males between the ages of 40 and 49 eat on average 103.1 g of fat every day…

A:

Q: Suppose that the duration of a particular type of criminal trial is known to be normally distributed…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Suppose that the diameter of meter shafts in a lot have a mean of 0.249 inches and standard…

A: Let, X = The diameter of meter shafts Y = The inner diameter of bearings D = Y - X Given that,…

Q: Suppose that the amount of protein in certain type of energy bar is Normally Distributed with a mean…

A: Given,sample size(n)=25mean(μ)=8.1standard deviation(σ)=0.64

Q: Suppose an elevator is the maximum capacity of 16 passengers with the total weight up to 2500…

A:

Q: Suppose x has a distribution with a mean of 20 and a standard deviation of 4. Random samples of size…

A: As per our guidelines we are suppose to answer first question . mean(μ)=20standard…

Q: A normally distributed population has a mean of 475 and a standard deviation of 80. a. Determine the…

A: The random variable is x. It follows approximately normal distribution. We have to use standard…

Q: The lengths of adult males' hands are normally distributed with mean 192 mm and standard deviation…

A:

Q: About 73% of all female heart transplant patients will survive for at least 3 years. Sixty female…

A: We have find of given probabiity.

Q: Suppose that the diameter of meter shafts in a lot have a mean of 0.249 inches and standard…

A: A) In this given data just we are finding the clearances of the mean and standard deviation.

Q: About 78% of all female heart transplant patients will survive for at least 3 years. Seventy female…

A: p = 0.78 n = 70   The probability is given by ​​​​​​​

Q: The weights of a certain brand of candies are normally distributed with a mean weight of 0.8544 g…

A: Given that: X is normal Distributed with mean µ = 0.8544 and standard deviation σ = 0.0512 By using…

Q: Suppose that systolic blood pressure is approxiamtly Normally Distributed with a mean of 116 mmHg…

A: Given info: systolic blood pressure is approximately Normally Distributed with a mean of 116 mmHg…

Q: uppose an elevator has a maximum capacity of 16 passengers with a total weight of 2500lbs. Assume…

A: (A) The probability that 1 randomly selected woman has a weight  greater than 156.25lbs is…

Q: Find the probability that the mean of a random selection of 36 months will have a mean between 357…

A: Probability= 0.3532

Q: A certain type of radio tubes lasts on the average of 3 years with a standard deviation of 2.9…

A: Solution: Given information: n= 40 Sample size  μ= 3 Population mean σ= 2.9 Population standard…

Q: A chain of taco restaurants claims that the population mean of the wait times in their drive-thru…

A: Introduction: The 100 (1 – α) % confidence interval for the population mean, μ, when the population…

Q: Suppose that the walking step length of an adult males are normally distributed with a mean of 2.5ft…

A: The mean is 2.5 and the standard deviation is 0.5.

Q: Suppose that the average height of men in the United States is approximately normally distributed…

A: Given, Suppose that the average height of men in the United States is approximately…

Q: About 71% of all female heart transplant patients will survive for at least 3 years. Eighty female…

A: It is given that n =80 and p =0.71.

Q: Suppose a random sample of n = 25 observations is selected from a population that is normally…

A:

Q: After studying apples for years we found that the weigths of the apples is normally distributed with…

A: Given Information: μ=250g σ=28g Sample size (n) = 36 Standard error of the sampling distribution…

Q: Assume that females have pulse rates that are normally distributed with a mean of 74.0 beats per…

A: Given information- Population mean, µ = 74 bpm Population standard deviation, σ = 12.5 bpm Let, X be…

Q: A simple random sample of size n=50 is obtained from a population with a mean of 46 and a standard…

A: Suppose the variable of interest is X.

Q: About 77% of all female heart transplant patients will survive for at least 3 years. Eighty female…

A: Given that the population proportion is p=0.77. The sample proportion is denoted by p^. Eighty…

Q: 1. The mean systolic blood pressure in a certain population of men between the ages of 20 and 24 is…

A: As per our policy we can solve only 3 subparts per question. Kindly post again for remaining…

Q: suppose that IQ scores and one region are normally distributed with a standard deviation of 16.…

A:

Q: Suppose that y is a random variable having a normal distribution wit mean equal to 250 and a…

A: Let y be the random variable having normal distribution with mean 250 and standard deviation 10. We…

Q: Women's heights are normally distributed with a mean given by u = 63.6 in. and a standard deviation…

A:

Q: The average price of a college math textbook is $162 and the standard deviation is $25. Suppose that…

A: Given information Mean µ = 162 Standard deviation σ = 25 n = 11 Distribution of X ~N (µ = 162, σ =…

Q: Suppose that among salmon fish that are longer than 80cm, their weights have a mean of 6.4kg and a…

A: Given information: μFish=6.4, σFish=0.50 n = 120