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Construct a frequency distribution (class, tally and frequency) for the data set using the indicated number of classes. In the table, include the midpoint, relative frequencies and cumulative frequencies. Also construct a relative frequency histogram. Number of class: 5 Data set: 14 10 6 4 19 20 11 5 12 18 5 10 13 23 22 3 12 10 5 24 10 19 7 3 23 15 8 21 5 18 10 7 16
Construct a 99% confidence interval for the difference between the true average boot times of the two types of hard drives. Assume the difference will represent (HDD-SSD) and that the population standard deviations are statistically the same.
Carry out F test for significance of straight line regression of Y on X and interpret your results.
If student is chosen at random, determine the probability that he or she is sophomore and owns a credit card.
What is the probability that the first card dealt is an ace of spade?
If you were to roll a single die 10 times, the result of each roll would be __________. A) Mutually exclusive of the other nine rolls B) Proportional to the other nine rolls C) Dependent upon the other nine rolls D) Independent of the other nine roll..
Is there evidence that the population mean is above $300, if X (bar) = $305.11 and s = $43.20?
Suppose the weights of full boxes of a certain kind of cereal are normally distributed with a population standard deviation of 0.29 ounces.
A journal polled its readers to determine the proportion of wives who, if given a second chance, would marry their husband again.
Use the t test to determine whether the slope of the regression model is significant at α = 0.05.
A business owner decides to use a binomial distribution to solve one of his problems.
What is the null hypothesis? Use α =0.05. Compute critical value. Use α =0.05.
Formulate a linear programming model for this problem.
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