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Corporate triple A bond interest rates for 12 consecutive months follow.
Month Bond Interest1 9.52 9.33 9.44 9.65 9.86 9.77 9.88 10.59 9.910 9.711 9.612 9.6
a. Make three-month and four-month moving averages for this time series. Does the three-month or four month moving average provide the better forecast? Explain.
b. What is the moving average forecast for the next month?
Probability distribution described by the following density curve and The expected value of the sum of the weights of the two oranges, in pounds
Sketch the areas under the standard normal curve over the indicated intervals, and find the specified areas.
What is the best estimate of the average tread life for the entire population of these tires?
Compute test statistic and p -value for each sample. (Negative amount must be pointed out by minus sign.)
The null hypothesis is that the distribution of mother's educational level is the same for both treatment groups. The value of the chi-square statistic is 7.422. Evaluate the P-value
Let p1 = 100 and n1 = 500; and p2 = 200 with n2 = 500. Test whether there is a statistical difference between the two proportions at the 5% significance level.
Elucidate correlation coefficient of determination R-square also Adjusted R-square. A computer utility was implimentated to the data collected in a study of a generalized health.
Utilize this information to construct a probability table, and then calculate each of the given probabilities:P (female and domestic car).
Find the margin of error for the 95% confidence interval used to estimate the population proportion.
Using sample, determine a 98% confidence interval for mean weight of whole daily output.
Test the hypothesis that the annual incomes of corporate trainers in areas of more than 500,000 are significantly more than those in areas of less than 100,000.
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.
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