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Calculate the limits within which the weight of the packets should lie assuming that the machine is not been classified as faulty.
Suppose that the random variable x has a uniform distribution with c=2 and d=8. A.) Write the formula for the probability curve of x, and write an interval that gives the possible values of x.
"Suppose a committee of 12 people is selected at random from a pool of 100. What is the probability that person A and B will both be selected?"
Under what conditions should you use the McNemar test?
Compute an estimate of the average runoff volume when rainfall volume is 75. (Give the answer to two decimal places.)
suppose a doctor uses the average x bar for two tests taken about a week apart. what is the probability of x bar less than 3500? C. Repeat part B for n = 3 tests taken a week apart.
56 had bachelor's degrees; and of 75 male nurses, 34 had bachelor's degrees. If a nurse is selected at random, find the probability that the nurse is?
Use a one-tailed hypothesis test with an alpha level of .01 to demonstrate that the individuals in the sample significantly overestimate the true length of the line. (Note: Accurate estimation woul
A research scientist reports that mice will live an average of 40 months when their diets are sharply restricted and then enriched with vitamins and proteins. assuming that the lifetimes of such th
The local police department must write on average five tickets per day to keep department revenues at budgeted levels. suppose the number of tickets written per day follows a Poisson distribution wi
When the number of participants is so large (5000 partcipants) would the ordinal scale be the best form of measurement for this large number? I just need like a paragraph explaining this question o
Find that the student from class A is a fair student whereas the student from class B is a poor student, what is the probability that class A is the superior class?
a pollster wants to estimate the difference between the proportions of men and women who favor a particular national candidate, using a 90% confidence interval of width 0.05. Suppose the pollster ha
10 of which are totally defective and will not light up. Given that a randomly chosen bulb initially lights, what is the probability it will still be working after one week?
The time to complete a construction project is onrmally dsitributed with a mean of 60 weeks and a standar deviation of 4 weeks.
Assume that the salaries of elementary school teachers in the United States are normally distributed with mathml equation = $32,000 and mathml equation = $3000. If 100 teachers are randomly selected
A particular company offers a 500$ deductible policy. If the company wishes its expected profit to be $100, what premium amount should it charge?
78 percent of the males attended college. a management trainee is selected at random. What is the probability that the person selected is a female who did not attend college?
Many statistics related to births, deaths, divorces, and so on across time are reported as rates per 100,000 of population rather than as actual numbers. Explain why those rates may be more meaningf
Construct a distribution to represent the population such that the survey result above may be seen as a sample from the population. Find the MLE for the parameters in the population.
What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.
Suppose that the distribution of actual weight of students in your university or college is thought to be symmetric. If the average weight is 168 pounds, what would the median weight be?
Parts test scores produced by company A follow a mean of 7 and standard deviation of 0.30. Over the past 20 days (20 shipments), four have been rejected & returned back to company A. Determine i
We randomly select 20 students and find a mean of 2.3 with standard deviation of 0.7 construct confident interval for the mean amount of time spent stduying each night for all students.
Suppose 35% of all undergraduates are registered in a math course this semester and 55% are registered in an economics class this semester. If registered in a math course and registered in an econo