Mathematics, 21.06.2021 17:20 xxkeyxx51
The average height of BYU freshman from a random sample of 450 freshman at BYU is 68 inches with a standard deviation of 1.5 inches. What is the 98% confidence interval for the average height of BYU freshman?
a. (59.86, 60.14)
b. (67.83, 68.17)
c. (66.5. 69.5)
d. (67.86, 68.14)
Answers: 3
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
.
, so Z = 2.327.
is the standard deviation of the population and n is the size of the sample.
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The average height of BYU freshman from a random sample of 450 freshman at BYU is 68 inches with a s...
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