The lengths, in inches, of adult corn snakes have an unknown distribution with a population mean of 60 inches and a population standard deviation of 11 inches. Samples of size n = 89 were randomly drawn from the population. Using the Central Limit Theorem for Means, what is the mean for the sample mean distribution? Type a number for your answer.

Q: The mean number of customers arriving at a restaurant during a 15-minute period is 13. Find the…

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Q: The Weather Underground reported that the mean amount of summer rainfall for the northeastern US is…

A: Solution Here we will use one sample t test to test the mean amount of summer rainfall for the…

Q: A random sample of 85 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Answer: Given, n=85 μ=275 x=284 σ=30 (a) Option E. H0:μ=275  VS  HA:μ>275(claim)

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Q: A set of data items is normally distributed with a mean of 500. Find the data item in this…

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Q: A random sample of 85 eighth grade​ students' scores on a national mathematics assessment test has a…

A: From the provided information, Sample size (n) = 85 Sample mean (x̅) = 285 Population standard…

Q: A given distribution has a population mean, μ, of 131 and a population standard deviation, σ, of 14.…

A: Given information Mean = 131 Standard deviation = 14

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A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: From a normally distributed population, we took a simple random sample of 700 students with a mean…

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Q: The finishing times, in minutes, for running marathons have an unknown distribution with mean 297…

A: Mean = 297 Standard deviation = 32 Sample size = 41

Q: A class distribution is normal with mean of 75 and a standard deviation of 10. Find the following…

A: Given data; Mean = 75 Standard deviation  = 10 To find: P(X ≥ 90) = ?

Q: A given distribution has a population mean, μ, of 114 and a population standard deviation, σ, of 12.…

A:

Q: The weights of students in a very large statistics class vary according to a Normal distribution…

A: X be the weights of students in the statistics class. Given that, X follows Normal distribution with…

Q: A normal distribution has a mean of 76 and a standard deviation of 8. Find the z-score for a data…

A: The normal distribution has a mean (m) of 76 and a standard deviation (s) of 8. Data value (x) is…

Q: A given distribution has a population mean, μ, of 115 and a population standard deviation, σ, of 15.…

A: We have to find z score....

Q: A random sample of 88 eighth grade​ students' scores on a national mathematics assessment test has…

A: Given Information: Sample size (n) = 88 Sample mean (x¯) = 283 Population standard deviation (σ) =…

Q: Suppose that ?, the rent of a one-bedroom apartment in Edmonton, follows a distribution with a mean…

A: The central limit theorem states that the distribution of the sample mean for large sample sizes…

Q: A random sample of 49 shoppers showed that they spend an average of $23.45 per visit and the…

A: 1. Point estimate of the population mean is the sample mean.

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A: Given: X=Score of exam takers in the general education section Mean μ=97 Standard deviation σ=5.1…

Q: A researcher reports survey results by stating that the standard error of the mean is 20.The…

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Q: A given distribution has a population mean, μ, of 133 and a population standard deviation, σ, of 15.…

A: A given distribution has a population mean, μ, of 133 and a population standard deviation, σ, of 15.

Q: 1. In her class in Accounting, Miss Kay told the students that they need a grade in the top 10% of…

A: For a random value of the variable (i.e., the random grade in the Accounting class in this case) X,…

Q: A given distribution has a population mean, μ, of 147 and a population standard deviation, σ, of 8.…

A: Given information Mean (µ) = 147 Standard Deviation(σ) = 8 X = 130 z-score

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A: Margin of error, M.E = $500 Confidence level (α) = 95% σ =$1500

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A: It is given that the mean and standard deviation of finishing times are 30 and 5.5 minutes…

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A: Z-score for any Raw score X is given by, Z Score=(X-mu)/sigma Where mu is mean and sigma is standard…

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A: z=x-μσ Z score

Q: Find the indicated probability. The incomes of trainees at tthe local mill are normally distributed…

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Q: A class distribution is normal with mean of 75 and a standard deviation of 10. Find the following…

A: According to the given information, we haveMean = 75Standard deviation = 10

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A: Given Margin of error=1 Standard deviation=3.6 Significance level=0.05

Q: A random sample of 76 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given data is appropriate for testing of hypothesis . to test z-test for single mean . Because it is…

Q: A normal distribution has a mean of 76 and a standard deviation of 8. Find the z-score for a data…

A:

Q: A given distribution has a population mean, μ, of 137 and a population standard deviation, σ, of 15.…

A: Given, μ=137 σ=15 x = 110 z=?

Q: For a sample from a normal distribution with standard deviation σσ, the standard deviation of the…

A:

Q: A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean…

A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: A given distribution has a population mean, µ, of 115 and a population standard deviation, o, of 5.…

A: From the provided information, Mean (µ) =115 Standard deviation (σ) = 5 X ~N (115, 5)

Q: Consider a normal distribution curve where 70-th percentile is at 11 and the 30-th percentile is at…

A: Given 70-th percentile is at 11, then…

Q: A given distribution has a population mean, μ, of 142 and a population standard deviation, σ, of 10.…

A: It is given that the mean (µ) is 142 and the standard deviation (σ) is 10 and score, x is 110.

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: Determine the sample size n needed. Obtain the critical value of z at the 95% confidence level.…

Q: The population has a mean of 120 and a standard deviation of 12. The sample size of your sampling…

A: The provided information are: Population mean (µ) = 120 Population standard deviation (σ) = 12…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: Given: Standard deviation, σ = 2.8​​​​​​ True mean differs from the sample mean by one more than one…

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A:

Q: A given distribution has a population mean, μ, of 142 and a population standard deviation, σ, of 12.…

A:

Q: If the true mean is 0.9480 with a standard deviation of 0.0060, within what interval will 95% of the…

A: Random samples of 35 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. The…

Q: Given a normal distribution with a mean of 130, and a standard deviation of 4.5, find the value of a…

A: Z-score corresponding to a normal variable value X is      (X-mu)/sigma Where,      X = normal…

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A:

Q: The proportion of a population with a characteristic of interest is p = 0.35. Calculate the standard…

A: p = 0.35 n = 900

Q: A given distribution has a population mean, μ, of 143 and a population standard deviation, σ, of 6.…

A: we have given that  mean (μ) =143 ,standard deviation(σ)=6   and  ,   X=112 and X ~N(μ=143 ,σ^2 =36)…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A:

Q: A given distribution has a population mean, μ, of 131 and a population standard deviation, σ, of 7.…

A: Formula for Z-score : z =x-μσ