The average salary for a certain profession is 78,000. Assume that the standard deviation of such...
The average salary for a certain profession is 78,000. Assume that the standard deviation of such salaries is 32,000. Consider a random sample of68 people in this profession and let x overbarx represent the mean salary for the sample.
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The average salary for a certain profession is 78,000. Assume
that the standard deviation of such...
The average salary for a certain profession is $78,000.Assume that the standard deviation of such salaries...
The average salary for a certain profession is $78,000.Assume that the standard deviation of such salaries is 32,000.Consider a random sample of 68 people in this profession and let x overbarx represent the mean salary for the sample. What is sigma Subscript x overbar σx? sigma Subscript x overbar σx=_______(Round to two decimal places as needed.)
The average salary for a certain profession is $78,000. Assume that the standard deviation of such...
The average salary for a certain profession is $78,000. Assume that the standard deviation of such salaries is 32,000.Consider a random sample of 68 people in this profession and let x over bar x represent the mean salary for the sample. d. Find the z-score for the value x overbar x=69,500. z=_________(Round to two decimal places as needed.)
The average salary for a certain profession is $78,000. Assume that the standard deviation of such...
The average salary for a certain profession is $78,000. Assume that the standard deviation of such salaries is 32,000.Consider a random sample of 68 people in this profession and let x over bar x represent the mean salary for the sample. e. Find Px>69,500. (Round to three decimal places as needed.)
The average salary for a certain profession is$ 69,000. Assume that the standard deviation of such...
The average salary for a certain profession is$ 69,000. Assume that the standard deviation of such salaries is $ 39,500. Consider a random sample of 68 people in this profession and let x over bar x represent the mean salary for the sample. a. What is mu Subscript x over bar μx ? mu Subscript x over bar μx =________ b. What is sigma Subscript x over bar σx ? sigma Subscript x over bar σx =__________ (Round to...
The average salary for a certain profession is $75,500. Assume that the standard deviation of such...
The average salary for a certain profession is $75,500. Assume that the standard deviation of such salaries is $30,500. Consider a random sample of 71 people in this profession and let x over bar x represent the mean salary for the sample. a. What is mu Subscript x over barμ x ? mu Subscript x overbarμxequals=? b. What is sigma Subscript x over bar σ x? sigma Subscript x over bar σ x=________(Round to two decimal places as needed.) c....
Suppose a random sample of n=64 measurements is selected from a population with mean μ and...
Suppose a random sample of n=64 measurements is selected from a population with mean μ and standard deviation σ. For each of the following values of μ and σ, give the values of mu Subscript x overbarμx and sigma Subscript x overbar Baseline .and σx. a. μ =11, σ=22 b. μ=121 σ=64 c. μ=22 σ=32 d. μ=11 σ=160 a. mu Subscript x over bar μ=_________ sigma Subscript x over bar σx=n_______(Type an integer or a decimal.) b. mu Subscript x...
Suppose a random sample of=100 measurements is selected from a population with mean μ and standard...
Suppose a random sample of=100 measurements is selected from a population with mean μ and standard deviation σ.For each of the following values of μ and σ, give the values of u Subscript x overbarμx and sigma Subscript x overbar Baseline .and σx. a. μ=55, σ=22 b. μ=25, σ=100 c. μ=10, sigma=8080 d. u=55, σ=190 a. mu Subscript x overbarμxequals=______ sigma Subscript x overbarσxequals=_______ (Type an integer or a decimal.)
) According to a certain survey, adults spend 2.252.25 hours per day watching television on a...
) According to a certain survey, adults spend 2.252.25 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday" is 1.931.93 hours. If a random sample of 6060 adults is obtained, describe the sampling distribution of x overbarx, the mean amount of time spent watching television on a weekday. x overbarx is approximately normal with mu Subscript x overbarμxequals= 2.25 and sigma Subscript x overbarσxequals=0.2491620.249162 . (Round to six...
The mean salary of people living in a certain city is $37500 with a standard deviation...
The mean salary of people living in a certain city is $37500 with a standard deviation of $1589. A sample of 46 people is selected at random from those living in the city. Find the probability that the mean income of the sample is less than $38000.
Suppose a random sample of nequals=100100 measurements is selected from a population with mean muμ and...
Suppose a random sample of nequals=100100 measurements is selected from a population with mean muμ and standard deviation sigmaσ. For each of the following values of muμ and sigmaσ, give the values of mu Subscript x overbarμx and sigma Subscript x overbar Baseline .and σx. a. muμequals=5, sigmaσequals=2 b. muμequals=25, sigmaσequals=100 c. muμequals=10 sigmaσequals=80 d. muμequals=5, sigmaσequals=190 a. mu Subscript x overbarμxequals=55 sigma Subscript x overbarσxequals=2.2 (Type an integer or a decimal.) Both of your answers are incorrect. For a...
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