Average weight of males in the age bracket of 20-39 is 198.5 pounds. Assume population standard deviation of weight of this group of males is 16 pounds. You obtain a random sample of 30 males in this age bracket. 15 In repeated samples of size n = 30 males from this population, the fraction of sample means that fall within 194 and 203 is______. a 0.7911 b 0.8327 c 0.8766 d 0.9227

Average weight of males in the age bracket of 20-39 is 198.5 pounds. Assume population standard deviation of weight of this group of males is 16 pounds. You obtain a random sample of 30 males in this age bracket. 15 In repeated samples of size n = 30 males from this population, the fraction of sample means that fall within 194 and 203 is______. a 0.7911 b 0.8327 c 0.8766 d 0.9227

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Nn.39. Subject :- Advance Mathematic
The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 15 days.In what range would you expect to find the middle 50% of most pregnancies?Between and .If you were to draw samples of size 56 from this population, in what range would you expect to find the middle 50% of most averages for the lengths of pregnancies in the sample?Between ______ and _______.
The scores on a college entrance exam have an approximate normal distribution with mean, μ = 68 points and a standard deviation, σ = 13 points. a. About 68% of the exam scores lie between what two values? These values are: The z-scores are ________________, respectively. About 95% of the exam scores lie between what two values? These values are: The z-scores are________________, respectively. About 99.7% of the exam scores lie between what two values? These values are: The z-scores are ________________, respectively.
ch 13
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Calcium levels in people are normally distributed with a mean of 9.7 mgdL and a standard deviation of 0.5 mgdL . Individuals with calcium levels in the bottom 10% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
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mg and a standard deviation of 0.4 dL mg . Individuals with calcium levels in the bottom dL Calcium levels in people are normally distributed with a mean of 9.4 15% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. mg dL
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15	In repeated samples of size n = 30 males from this population, the fraction of sample means that fall within 194 and 203 is______.

a	0.7911
b	0.8327
c	0.8766
d	0.9227