An important indicator of lung function is forced expiratory volume (FEV), which is the volume of air that a person can expire in one second. Dr. Hernandez plans to measure FEV in a random sample of n individuals from a certain population, and to use the sample mean to estimate of the population mean. The population distribution of FEV is assumed to be normal with mean mus3000 ml and SD sigma=400 ml. Which of the following statements is correct regarding the sampling distribution of the sample mean y? Ⓒa. It is the theoretical distribution of a sample statistic (in this case the sample mean). b. It is the theoretical distribution of all individuals in the population. e. It is the observed distribution of all individuals in the sample. QUESTION 2 Suppose sample size is n-64. What is the mean of the sampling distribution of y? a.50 b-375 Ⓒc 400 Od 3000

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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An important indicator of lung function is forced expiratory volume (FEV), which is the volume of air that a person can expire in one
second. Dr. Hernandez plans to measure FEV in a random sample of n individuals from a certain population, and to use the sample
mean to estimate of the population mean. The population distribution of FEV is assumed to be normal with mean mu-3000 ml and SD
sigma=400 ml.
Which of the following statements is correct regarding the sampling distribution of the sample mean?
Ⓒa. It is the theoretical distribution of a sample statistic (in this case the sample mean).
b. It is the theoretical distribution of all individuals in the population.
Oc It is the observed distribution of all individuals in the sample.
QUESTION 2
Suppose sample size is n-64. What is the mean of the sampling distribution of y?
Ⓒa.50
b.375
c400
Od 3000
Transcribed Image Text:An important indicator of lung function is forced expiratory volume (FEV), which is the volume of air that a person can expire in one second. Dr. Hernandez plans to measure FEV in a random sample of n individuals from a certain population, and to use the sample mean to estimate of the population mean. The population distribution of FEV is assumed to be normal with mean mu-3000 ml and SD sigma=400 ml. Which of the following statements is correct regarding the sampling distribution of the sample mean? Ⓒa. It is the theoretical distribution of a sample statistic (in this case the sample mean). b. It is the theoretical distribution of all individuals in the population. Oc It is the observed distribution of all individuals in the sample. QUESTION 2 Suppose sample size is n-64. What is the mean of the sampling distribution of y? Ⓒa.50 b.375 c400 Od 3000
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