Consider the population of the size N = 7,500 with a mean of μ=152 and standard deviation of σ = 21 compute the following z-values for a sampling distribution of  x̅ with the given sample size. Round the solution to two decimal places if necessary Suppose a random sample of 60 observation is selected from the population calculate the z-value that corresponds to x̅ =147. z= Suppose a random sample of 93 observations is selected from the population calculate the z-value that corresponds x̅=158

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: mean = 112 s =37.1 n = 18

Q: A population has a mean μ = 86 and a standard deviation o=27. Find the mean and standard deviation…

A: GivenMean(μ)=86standard deviation(σ)=27sample size(n)=24

Q: The ages of a group of 148 randomly selected adult females have a standard deviation of 17.1…

A: Given: n = 148 σ=17.1 E=0.5

Q: (b) Find the sample size needed so that a 99.8% confidence interval will have a margin of error of…

A:

Q: The pulse rates of 180 randomly selected adult males vary from a low o 40 bpm to a high of 120 bpm.…

A: given data  minimum = 40  maximum =120 range = maximum - minimum =120-40 = 80 90% ci for mean, E = 3…

Q: se the central limit theorem to find the mean and standard error of the mean of the indicated…

A: According ton the information provided in the question, the per capita consumption of red meat by…

Q: fetime of electronics: In a simple random sample of 100 electronic components produced by a certain…

A: Given data,n=100Mean μ=125sd     σ=20Construct a 99.5% CI?

Q: se the central limit theorem to find the mean and standard error of the mean of the indicated…

A:

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Consider a random variable X defines the per capita consumption of red meat by people in a recent…

Q: A population has a mean muμequals=151151 and a standard deviation sigmaσequals=2323. Find the mean…

A:

Q: The ages of a group of  153 randomly selected adult females have a standard deviation of  16.3…

A: The population standard deviation is 16.3, and confidence level is 90%.

Q: The ages of a group of 120 randomly selected adult females have a standard deviation of 18.1 years.…

A: In statistics, standard deviation is defined as a measure of variability, that indicates how distant…

Q: Let a population consist of the values 7 cigarettes, 8 cigarettes, and 22 cigarettes smoked in a…

A: The population consists of 7, 8, and 22 cigarettes.The population mean is the formula for…

Q: average is maintained by periodically testing random samples of 25 tennis balls. If the t-value…

A: Solution

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A: Given information: A manufacturer of 8-watt LED downlights shows that the lifespan of the downlight…

Q: The pulse rates of 155 randomly selected adult males vary from a low of 40 bpm to a high of 108 bpm.…

A:

Q: The pulse rate of 147 randomly selected adult males has a standard deviation of s=12.5 bpm. We want…

A: The margin of error for a 99% confidence interval for the population mean is given by MOE=zα2×σn we…

Q: The ages of a group of 154 randomly selected adult females have a standard deviation of 16.8…

A:

Q: The ages of a group of 140 randomly selected adult females have a standard deviation of 16.4…

A:

Q: The circumference of a particular species of tree was thought to be different depending on certain…

A: Given that  x¯1=6s1=3n1=60n2=40x¯2=4s2=2 Consider, the pooled variance,…

Q: Assume that the two samples are independent simple random samples selected from normally distributed…

A: Given information: The data represents the values of the variables Home (volts) and Generator…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Obtain the mean of the sampling distribution of the sample mean. The mean of the sampling…

Q: a random sample of 23 items is drawn from a population whose standard deviation is unknown. the…

A:

Q: Suppose you could take all possible samples of size n = 25 from a Normal population with mean μ = 50…

A: Given : μ = 50 , σ= 5 and n= 25

Q: Assume that the sample is a sirmple random sarmple obtained from a normally distributed population…

A: In this case the population follows normal distribution, which is symmetric.

Q: A population has parameters μ=108.6μ=108.6 and σ=18σ=18. You intend to draw a random sample of size…

A: Sampling Distribution of a sample mean (x¯) ~ N(μx¯ , σx¯)

Q: The mean weights from a sample of 100 bumblebee bats taken from a certain population  is 5, sample…

A: Given,   Sample size = 100 Sample mean = 5 Sample standard deviation = 1

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Obtain the sampling distribution of the sample mean.   The sampling distribution of the sample mean…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Given that mu = 102,s.d=37.8,n=15

Q: Test the claim about the population​ mean, muμ​, at the given level of significance using the given…

A: The objective of this question is to test the claim about the population mean (μ) using the given…

Q: The ages of a group of 155 randomly selected adult females have a standard deviation of 16.4 years.…

A: Determine the value of sample size n. The value of sample size n is obtained as shown below: Use…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Obtain the mean of the sampling distribution of the sample mean. The mean of the sampling…

Q: Executives of a supermarket chain are interested in the amount of time that customers spend in the…

A: From the provided information,Population standard deviation (σ) = 28Confidence level = 90%Margin of…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: The mean is µ = 102 pounds. The standard deviation is σ = 37.1 pounds. The sample size is n = 17.

Q: e ages of a group of 122 randomly selected adult females have a standard deviation of 18.1 years.…

A: standard deviation()=18.1Margin of error(E)=0.5confidence level=90%

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

A: 20) Given,Population mean, μ = 86 inches.Population standard deviation, σ = 14 inches.Sample size, n…

Q: Assume that you have a sample of n, =4, with the sample mean X, =44, and a sample standard deviation…

A: The significance level, α=0.01   Sample 1 Sample 2 Sample size n1=4 n2=7 Sample mean x1=44…

Q: Let a population consist of the values 11 cigarettes, 17 cigarettes, and 18 cigarettes smoked in a…

A: Given Information: Population consists of 11 cigarettes, 17 cigarettes and 18 cigarettes smokes in a…

Q: Let a population consist of the values 10 cigarettes, 11 cigarettes, and 20 cigarettes smoked in a…

A: Given Information: The population consists of values: 10, 11, 20 All possible samples of size 2 with…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Answer Given Mean =103Sample size =20Standard deviation =39.4

Q: An ecologist is studying the impact of local polluted waters on the growth of alligators. The length…

A: Length of adult male alligators follows a normal distribution with µ and standard deviation 2. n…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Given that, μ=114,σ=39.2,n=19 The mean and standard error of the mean of the indicated sampling…