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The following data refers to gross earned income, in thousands of dollars per year, and level of taxation on that income. Determine whether a relation exists between these two factors, and if so its strength, then predict how much tax any otherindividual would have to pay in this mythical society.
INCOME 7 9 10 13 18 18 20 24 36 45
% TAX 2 4 4 7 10 13 15 12 13 20
Which component of a time series is most likely to occur? Which component has a pattern that must be complete in a single year and repeat from year to year?
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
The Wilcoxon signed rank test is computed for the data and gives a value W + = 161.5. Using the Normal approximation (without the continuity correction) the P-value.
Given sample data arranged in a frequency distribution table. Use Excel to calculate the sample mean and variance from this data set.
Use the t test to determine whether the slope of the regression model is significant at α = 0.05.
If he selects the three brands at random, what is the probability that he will select the following?
At the .05 significance level, can we conclude that there is a difference in their mean times?
At the 0.05 level of significance, is there evidence of a significant relationship between the age groups and where people primarily get their news? If so explain the relationship.
Do these scores suggest that the different foods are differentially preferred by people in general? (Use the .05 significance level.)
Prepare a 10-13-question survey to gather primary data regarding your selected problem statement. Please note that you will not administer this survey as part of this assignment.
The company statistician has reported the mean number of man-hours lost per month but did not keep a record of the total sum. Should the manager order the study repeated to obtain the desired information? Explain your answer clearly.
Please use the regression procedure within Excel under Tools > Data Analysis to construct this equation.
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