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Consider a multinomial experiment involving n = 300 and k = 5 cells. The observed frequencies resulting from the experiment are shown in the accompanying table, and the null hypothesis to be tested is as follows:
Ho : p1 = .1, p2 = .2, p3 = .3, p4 = .2, p5 = .2 ,
Test the hypothesis at the 1% significance level.
Among 500 freshmen pursuing a business degree at a university, 347 are enrolled in an economics course, 204 are enrolled in a mathematics course, and 160 are enrolled in both an economics and a mathematics course.
The calculated Z test statistic is a positive value that leads to a p-value of .045 for the test. If the significance level (α) is .01, the null hypothesis would be rejected.
A manufacturer wants to increase the shelf life of a line of cake mixes. past records indicate that the average shelf life of the mix is 216 days. after a revised mix has been developed, a sample of nine boxes of cake mix gave these shelf lives (i..
The mean of land and buildings per acre from a sample of farms was $637, with a standard deviation of 26. Use Empirical Rule to find approximate percentage of acreage whose values were between $ 661 and $663.
How can you answer the dual simplex question with maximization objective function and also explain difference between m tecnique and two phase method?
A coin was flipped 60 times and came up heads 36 times. Determine the critical value you would use to test whether proportion of heads is greater than 0.50 at 10% level of significance?
The board of directors of Saner Automatic Door Company consists of 12 members, 3 of whom are women.
What control chart(s) would you use for this data and what are the final control limits?
The standard deviation is estimated to be 0.279. Use the 99% level of confidence.
It has been evaluated that 30% of all farms are family-owned. In sample of 12 farms, determine the probability that exactly 3 farms are family owned?
Let x be a random variable that represents a test score. What is the lowest score that would still place a student in the top 40% of the scores?
Given that x is a normal variable with mean u = 47 and standard deviation = 6.2, find:
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