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There are 20 families living in Will Development. Of these families 10 prepared their own federal income tax for lastyear, 7 had them prepared by a local professional, 3 by H&R Block.
a. What is probability of selecting a family that prepared own taxes?
b. What is probability of selecting two families which both prepared own taxes?
c. What is probability of selecting 3 families all prepared own taxes?
d. What is probability of selecting 2 families neither had taxes prepared by H&R Block?
Distinct random variable
The null hypothesis is to be tested at the 10% level of significance. The critical value from the table is:
Public transportation and the automobile are 2 methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
Create the table for frequency distribution that has 16 class intervals of width 1 inch. Utilize 61.5 inches as lower limit of first interval and 62.5 as upper limit.
Describe the given data show a seasonal effect using moving average method. Describe the data which show a seasonal effect.
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
Illustrate a quantitative assessment of what our charts would look like and what these new targets would do to our operations.
Then estimate demand again with a weighted moving average in which sales in the most recent year are given a weight of 2 and sales in the other two years are each given a weight of 1.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Confirm that these statements are accurate by finding the geometric mean rate of increase.
A function sometimes associated with a continuous nonnegative random variable is the failure rate (or hazard rate) function which is defined as:
To sketch the 3-sigma X-bar chart and R-chart parameters. A candy bar manufacturer desires to set up a variables control chart for the net weight of its candy bars.
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