Everywhere you see an " x " it should be "x-bar"
Suppose that the mean value of interpupillary...
Mathematics, 06.03.2020 23:59 prissydizzybella5
Everywhere you see an " x " it should be "x-bar"
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm.
(a) If the distribution of interpupillary distance is normal and a sample of n = 25 adult males is to be selected, what is the probability that the sample average distance for these 25 will be between 63 and 66 mm? at least 67 mm? (Round all your intermediate calculations to four decimal places. Round your answers to four decimal places.) for
63 mm < x < 66 mm
for x = 67 mm
(b) Suppose that a sample of 100 adult males is to be obtained. Without assuming that interpupillary distance is normally distributed, what is the approximate probability that the sample average distance will be between 63 and 66 mm? at least 67 mm? (Round all your intermediate calculations to four decimal places. Round your answers to four decimal places.)
for 63 mm < x < 66 mm
for x = 67 mm
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