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It is estimated that 75% of a grapefruit crop is good; the other 25%have rotten centers that cannot be detected until the grapefruit are cut open. The grapefruit are sold in packs of 10. Let r be the number of good grapefruits in the sack.
(a) What is the probability of getting no more than one bad grapefruit in a sack? What is the probability of getting at least one good grapefruit in a sack?
(b) What is the expected number of good grapefruit in a sack?
(c) What is the standard deviation of the r-probability distribution?
hypothesis testing is one of the mainstays of medical research literature. you would be hard-pressed to find a research
find the max likelihood estimates for theta1 u and theta2 gamma2 if a random sample of size 15 from nu gamma2 yileded
an insurance sales representative sells policies to 5 men all of identical age and in good health. according to the
question given here are the data from a dependent variable and two independent variables. the second independent
They estimated the proportion of students at the university who prefer outdoor exercise as (0.5745, 0.8217), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval?
Using data provided, test if there is a difference between means at alpha =.05.
Demands for an item are part of a poisson process and are made on a warehouse 3 times per day. What is the probability that on a given day this item is requested:
Determine which variable is the dependent variable.
Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census.
Calculate the expected value of your portfolio and calculate the expected standard deviation of your portfolio.
Identify at least three variables for which you could calculate a logistic regression. Describe the variables and their scale of measurement.
The data below shows the time to process an inpatient admission, before and after a system usage training session was given. The following hypotheses were formulated for this study.
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