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Determination of Sample size for an interval estimate of the population proportion.
Of the adults in Jefferson County, 10 percent have had CPR training. For a randomly selected group of students from this county, how large will the group have to be in order for the probability that have as a minimum one group member has had CPR training to be at least 0.90?
A check of dorm rooms on a large college campuses revealed that 38% had refrigerators, 52 percent had TVs and 21 percent had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has.
Below are one hundred pseudorandom numbers from a uniform pdf. Set up and test the appropriate goodness-of-fit hypothesis. Let α = 0.05.
Determine the probability of having more than 3 defects in a roll?
Probability that the entire batch will be rejected?
For monthly volume of 300 tables, find out total cost, total revenue and profit.
What do you find out when you perform the nonparametric statistics?
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
Compare value of test statistics F obtained in part(2) with value of t 2 , square of test statistic for testing H 0 : β 1 =0 that was needed in test null hypothesis that true slope is 0. Interpret the results of this test.
Calculate the value of the chi-square statistic and test whether all regions are statistically the same at 5% and 1% level tests.
Find out the expected shape of distribution of sample mean?
Let X be the number of correct guesses by your friend in the 100 trials and Use the Normal approximation with the continuity correction - Which of the following might be reasonably modeled by the binomial distribution
Create a frequency table for the total number of people that prefer each type of music:
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