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Correlation between the two variables based on scatter plot.
A store manager wishes to find out whether there is a relationship between the age of her employees and the number of sick days they take each year. The data for the sample are shown below.
Age ( X)
18
26
39
48
53
58
Sick Days(Y)
16
12
9
5
6
2
Draw the scatter plot for the variables.
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
Describe the independent variable and the dependent variables?
Conduct a hypothesis test using the .04 level of significance to determine if there is a difference between the population means.
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
Construction of histogram and pie chart for continuous data
Construction of frequency distribution table for the given continuous data.
Based on these data, explain whether or not course attendance had any effect on determining of a restaurants violation of health code.
You want to know whether the population means are different in the two populations. Conduct an hypothesis test using an alpha of .05 and the critical value method.
Use the t test to determine whether the slope of the regression model is significant at α = 0.05.
Use Excel and the data to test whether the mean alcohol expenditures for UCM students is equal to that of SBU students using a 1 % level of significance.
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