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A survey is to be made of the prevalence of the common disease in a large population. for any disease that affects atleast 1% of the individuals of the population, it is desired to estimate the total number of cases, with a coefficient of variation of not more than 20%
a) what size of simple random sample is needed. assuming that the presence of the disease can be recognized without mistakes?
b) what size is needed if total cases are wanted separately for males and females, with same precision?
at appalachian state university it is known that 48 of undergraduates are male. if a sample of 125 undergraduate
Assume that z is the test statistic and calculate the value of z∗ for testing the null hypothesis
What is the likelihood that none of the selected flights arrived within fifteen minutes of scheduled time?
What maximum variance of the raw score population could you have and still be able to reject the null hypothesis of μ = 20 (α = .05), if the sample size is 100 and the sample mean is 22?
Compute the expected value of perfect information. Do you think it would be worth trying to obtain additional information concerning which scenario is likely to occur?
Use the t-distribution table to find the critical value(s) for the indicated alternative hypothesis, level of significance ?, and sample sizes n? and n?.
the standard deviation of 112 units.. What is the probability that the demand for this item in the upcoming week will be between 600 and 700 units.
A pair of fair 6-sided dice are tossed. Find the probability of a total of 7 spots on top. Find the probability of at least spots on top.how do you do this
This study investigates whether there are differences in the outcomes of three different treatments for anxiety
a normal population has m 50 and s 8. a random sample of n 4 scores from this population has a mean of 54. what is
a total of 1232 students have taken a course in spanish 879 have taken a course in french and 114 have taken a course
question shown below are dollar figures for commercial and industrial loans at all commercial banks in the u.s. as
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