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1.Consider the following time series.t 1 2 3 4 5 6 7Yt 120 110 100 96 94 92 88a. Construct a time series plot. What type of pattern exists in the data?b. Develop the linear trend equation for this time series.c. What is the forecast for t 8?2. Consider the following time series.t 1 2 3 4 5 6 7Yt 82 60 44 35 30 29 35a. Construct a time series plot. What type of pattern exists in the data?b. Using Minitab or Excel, develop the quadratic trend equation for the time series.c. What is the forecast for t 8?
If profit earned in the manufacture and sale of X units of a product is P dollars where: P = 10X - 0.001X2
Mean waiting time was 15 minutes and that the standard deviation was 4 minutes. The 95% confidence interval for the population mean of waiting times is?
Will the margin of error for estimating the population proportion change from state to state if an SRS of 4000 tax returns is selected in each state?
Based on the earnings below, is there sufficient evidence to conclude, at the 99% level of confidence, that one of these divisions is more profitable than the others? Calculate the mean square for factor, and the mean square for error.
Draw suitable distribution curve indicating position of the TS and CV.
Faced with rising Fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.
At the 5% level do the data provide sufficient evidence to conclude that the mean time served for fraud is less than that for firearms offenses? Identify the appropriate test and test the claim using the traditional method at the 0.05 level of sig..
Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places.
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.
Explanation on what is the logic behind using the sum of the products of deviation scores as the numerator of the formula for the correlation coefficient?
Thirty percent of the population in a southwestern community are Spanish-speaking Americans. A Spanish-speaking person is accused of killing a non-Spanish speaking American.
In optimal solution, determinethe critical path?
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