A sample of size 31 will be drawn from a population with mean 39 and standard...
A sample of size 31 will be drawn from a population with mean 39
and standard deviation 9
(a) Is it appropriate to use the normal distribution to find
probabilities for x?
(b) If appropriate find the probability that x will be between 40
and 41
Round the answer to at least four decimal places.
(c) If appropriate find the 33rd percentile of x
. Round the answer to at least two decimal places
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A sample of size 31 will be drawn from a population with mean 39
and standard...
A sample of size 45 will be drawn from a population with mean 53 and standard...
A sample of size 45 will be drawn from a population with mean 53 and standard deviation 11. Use the T1-84 Plus calculator. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) Find the probability that will be between 54 and 55. Round the answer to at least four decimal places (c) Find the 47th percentile of x. Round the answer to at least two decimal places. Yes (a) Is it appropriate to use...
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A sample of size 25 will be drawn from a population with mean 129 and standard deviation 25 (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) If appropriate find the probability that x will be less than 116. (c) If appropriate find the 90 percentile of x. (a) Is it appropriate to use the normal distribution to find probabilities for x? Yes No (b) The probability that will be less than 116 is...
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A sample of size 19 will be drawn from a population with mean 126 and standard deviation 38. (a) Is it appropriate...
A sample of size 19 will be drawn from a population with mean 126 and standard deviation 38. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) If appropriate find the probability that x will be less than 115. (c) If appropriate find the 95 percentile of (a) Is it appropriate to use the normal distribution to find probabilities for x? Yes No (b) The probability that x will be less than 115 is...
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A random sample of size 39 is to be selected from a population that has a mean μ = 53 and a standard deviation σ of 15. (a) This sample of 39 has a mean value of x, which belongs to a sampling distribution. Find the shape of this sampling distribution. -skewed right -approximately normal -skewed left -chi-square (b) Find the mean of this sampling distribution. (Give your answer correct to nearest whole number.) (c) Find the standard error of...
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A sample of size 45 will be drawn from a population with mean 10 and standard...
A
sample of size 45 will be drawn from a population with mean 10 and
standard deviation 5. Find the probability that x will be greater
than 11.
32) A sample of size 45 will be drawn from a population with mean 10 and standard deviation 5. Find the probability that x will be greater than 11. B) 0.9099 A) 0.0901 C) 0.0721 D) 0.1170
A sample of size 45 will be drawn from a population with mean 53 and standard deviation 11. Use the T1-84 Plus calculator. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) Find the probability that will be between 54 and 55. Round the answer to at least four decimal places (c) Find the 47th percentile of x. Round the answer to at least two decimal places. Yes (a) Is it appropriate to use...
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A
sample of size 45 will be drawn from a population with mean 10 and
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