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Explain whether one (or both) of the situations for the approximate normality of the sampling distribution of the mean holds in each scenario.
a. Mean normal body temperature will be determined for a randomly selected sample of 18 individuals. In the population of all humans, normal body temperature has approximately a normal distribution with mean μ = 98.2 degrees Fahrenheit and standard deviation σ = 0.5.
b. Mean number of music CDs owned will be determined for a randomly selected sample of four college students. In the population of all college students, the distribution of number of CDs owned is skewed to the right.
c. Refer to part (b). The mean number of music CDs owned will be determined for a randomly selected sample of 900 college students.
Authorized persons from a facility containing classified information. The device will ?erroneously admit 1 in 10,00,000 unauthorized persons. Assume that 95% of those who ?
Using Tableau create 3 simple graphs. We have a survey, you can pick any information from the survey and create 3 graphs by using Tableau
If the population standard deviation is known, but the sample size is less than 30, what assumption is necessary to use the z-statistic in carrying out a hypothesis test for the population mean?
Using your knowledge of infectious disease epidemiology, quantify the pattern of disease X in this group, i.e., what are the infectivity, pathogenicity, and virulence of disease X?
Compute a 99% confidence interval for μ if the average for randomly selected 20 heat pumps is 4.85 and the standard deviation of all heat pumps is known to be 0.75.
The service times of the arrivals are independent exponential random variables with rate μ, and are independent of the arrival process. Customers depart the system when their service ends. Let N be the number of arrivals before the ?rst departure.
in a tire factor the quality control inspector examines a randomly chosen sample of 16 tires. when more than one
I want to see two methods are the significantly same or not. Each methods has 5 variables are inside. so I would like to see each 5 variables from methods A and B are significantly the same and overall the two methods are significantly same or not..
Do cars get better gas mileage with premium instead of regular unleaded gasoline? While it might be possible to test some engines in a laboratory setting, we'd rather use real cars and real drivers in real day-to-day driving, so we get 20 voluntee..
can someone please give me an example of and explination ofa how to use standardization to look up probabilities for
a study of residents of a region showed 20 were smokers. the probability of death due to lung cancer given that a
Suppose that random samples of Caucasian-American and Chinese-American individuals are obtained from patient records of doctors participating in a study to compare blood pressures of the two populations.
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