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Of the 235 airports available for public use in Michigan, 128 are paved and lighted. For a simple random sample of n = 50, what is the probability that at least 20 of the airports in the sample will be paved and lighted?
A random sample of 100 students who took a statistics exam were asked their score on the exam. The mean score on the test was 50; the standard deviation was 10. The scores are normally distributed.
A psychologist is interested in knowing whether adults who were bullied as children differ from the general population in terms of their empathy for others.
Use the .02 significance level. 2. The decision rule is to reject H0 if Z greater than ___? 3. Compute the value of the test statistic. The test statistic is Z=___. 4. What is the p value?
What is true about the two values
The student's final grades in Math 17, Philo 1, Englsih communication 1 and Bio 1 are 2.0, 2.25, 1.75 and 2.0, respectively. If the respective credits for these subjects are 6, 3, 3, and 4 units, determine the student's GPA or weighted average grade.
Compute standard normal z-score corresponding to value of x = 23. e. Determine P(x 23). G. Determine P(16
Explain clearly what is meant by a false negative rate of 5% and a false positive rate of 15%. If the population were screened, what proportion would be expected to test negative for metropathy?
customers come to a store as a poisson process with rate 12 per hour.a compute the probability of three customers
Give an example that follows either the binomial or Poisson distribution, and why that example follows that particular distribution.
question in a multiple regression equation two independent variables are considered and the sample size is 25. the
Let A be the same set as in given Exercise. Show that the following relation is an equivalence relation:- (m1,n1)p(m2,n2) if m1+n2 = n1+m2. Draw the equivalemce class of (1,2).
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
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