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Four in Ten Americans Who Travel by Car Look for Gas

Question 7

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Four in ten Americans who travel by car look for gas and food outlets that are close to or visible from the highway. Suppose a random sample of n = 20 Americans who travel by car are asked how they determine where to stop for food and gas. Let x be the number in the sample who respond that they look for gas and food outlets that are close to or visible from the highway.
Calculate the mean of x.
______________
Calculate the variance of x.
______________
Calculate the interval Four in ten Americans who travel by car look for gas and food outlets that are close to or visible from the highway. Suppose a random sample of n = 20 Americans who travel by car are asked how they determine where to stop for food and gas. Let x be the number in the sample who respond that they look for gas and food outlets that are close to or visible from the highway. Calculate the mean of x. ______________ Calculate the variance of x. ______________ Calculate the interval . ______________ What values of the binomial random variable x fall into this interval? ______________ Find . ______________ How does this compare with the fraction in the interval for any distribution? For mound-shaped distributions? ________________________________________________________ .
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What values of the binomial random variable x fall into this interval?
______________
Find Four in ten Americans who travel by car look for gas and food outlets that are close to or visible from the highway. Suppose a random sample of n = 20 Americans who travel by car are asked how they determine where to stop for food and gas. Let x be the number in the sample who respond that they look for gas and food outlets that are close to or visible from the highway. Calculate the mean of x. ______________ Calculate the variance of x. ______________ Calculate the interval . ______________ What values of the binomial random variable x fall into this interval? ______________ Find . ______________ How does this compare with the fraction in the interval for any distribution? For mound-shaped distributions? ________________________________________________________ .
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How does this compare with the fraction in the interval Four in ten Americans who travel by car look for gas and food outlets that are close to or visible from the highway. Suppose a random sample of n = 20 Americans who travel by car are asked how they determine where to stop for food and gas. Let x be the number in the sample who respond that they look for gas and food outlets that are close to or visible from the highway. Calculate the mean of x. ______________ Calculate the variance of x. ______________ Calculate the interval . ______________ What values of the binomial random variable x fall into this interval? ______________ Find . ______________ How does this compare with the fraction in the interval for any distribution? For mound-shaped distributions? ________________________________________________________ for any distribution? For mound-shaped distributions?
________________________________________________________

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8; 4.8; (3.61822, 12.3818); (4, 12); 0.9...

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