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Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
1. In one town, monthly incomes for men with college degrees are found to have a standard deviation of $650. Use a 0.01 significance level to test the claim that for men without college degrees in that town, incomes have a higher standard deviation. A random sample of 22 men without college degrees resulted in incomes with a standard deviation of $901.
2. 34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 25.9 pounds and a standard deviation of 3.8 pounds. What is the 95 percent confidence interval for the true mean weight, μ, of all packages received by the parcel service?
Calculate the expected value and standard deviation of the value.
Complete the table and answer the following questions. Use the .05 significance level.
Critically illustrate out the aim and obejectives of factor analysis? Critically illustrate out the aim and obejectives of Cluster analysis? Critically illustrate out the aim and obejectives of Multidimensional analysis?
What method of random selection can be used to determine which women to select in quantitative research?
Mention the critical value of test statistic (Or give the p-value of the test.)
A manufacturer produces and sells chilled, ready-to-eat pasta salad in round lots of 50 serving units each. These items have a very limited shelf life; therefore, if items are made but not sold, they have no value.
The mean of a set of 7 numbers is 13. What is the sum of the numbers? Find the mode of the following test scores: 89, 78, 91, 82, 75, 89, 84, 95, 89, 93
When calculating correlation coefficient, what does a value of -2 indicate? Strong negative correlation, Weak negative correlation.
Formulate and LP model for this problem using Excel. Sketch the feasible region for this problem using Excel. Find the optimal solution
Develop a probability for the number of students in the sample who watch soap operas.
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck.
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