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At the March meeting of the board of directors for
Gasoline
14,356
the Graystone Services Company, one of the regional
Kerosene
4,020
managers put the following data on the overhead
Diesel & home heating oils
14,785
projector to illustrate the ratio of the number of units
Residuals
3,728
manufactured to the number of employees at each of
Asphalt, LPG, and other
4,213
Graystone's five manufacturing plants:
a. Construct a pie chart to display North American sales by product per day. Display the product sales information as a percentage of total product sales for North America.
b. Construct a pie chart to display United Kingdom sales by product per day. Display the product sales information as a percentage of total product sales for the United Kingdom.
c. Construct a bar chart that effectively compares the daily product sales for North America and the United Kingdom.
I want it to be analysed with descriptive statistics, means/medians of variables and chi-square analysis. Interpretations of the results, their links or interesting points among the results must be explain clearly.
In addition, the gender of the respondent is noted. After analyzing the results the following table of joint probabilities was produced: Find the probability that a customer who rates Windsor as excellent is a man. 0.45
What is approximately the largest sample mean of another sample of n= 16 participants you would expect to obtain from this finite population?
a group of psychologists examined the effect of alcohol on the reactions to a threat. after obtaining a blood alcohol
Interpret the three confidence intervals in terms of whether there is a significant difference between the mean of the sample and a hypothesized mean of 150.
What is the probability that between 90 and 100 employers provide a two-day paid Thanksgiving holiday? That is, what is the ?
Create a 90 percent confidence interval for the population proportion of all such firms with this as the primary motivation.
Salary data for a sample of 50 universities were obtained. We are curious about the relationship between mean salaries for assistant professors.
Also, 77 percent of managers have MBA degrees. Using probability formulas, determine proportion of employees who either have MBAs or are managers.
Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)
determine the sample size needed to construct a 90 confidence interval to estimate the population mean when ? 75 and
now that you are familiar with the basic concepts of statistics what are some examples of when you have seen or heard
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