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In your initial post, describe a situation when you compared two variables and calculated the slope of their linear regression line.
What do you deduce from the correlations? What are the implications for Big D Incorporated regarding their client in the outdoor sporting goods?
How can graphics and/or statistics be used to misrepresent data? Where have you seen this done?
Calculate the average returns, variances, & the standard deviations for X and Y.
Jerry Young is considering opening a bicycle shop in his hometown. Jerry can open a small shop, a large shop, or no shop at all.
Thirty of the messages were not business related. The 90% confidence interval for the population proportion is?
In your initial post, describe a situation when you stated a correlation.
You need to complete the project schedule, schedule management approach, budget, and tracking methods.
- What is a Gantt chart? Critical path? - What schedule tool is better? Gantt, PERT, or CPM?
What is the probability that this woman has a job outside the home? What's the probability that this woman has at least one child?
The following is a probability distribution for a discrete random variable. What is the missing value in the probability column?
How would you explain your conclusion to Sara without using any statistical jargon? Why?
Explain what is coefficient of variability for the variable "Price". What is its significance?
(a) Find the mean final examination score. (b) Find the median final examination score.
What is the major difference between chi square distribution and other statistics such as Z and F. In addition where can it be applied in work or home.
Construct a 95 percent confidence interval for the difference between the proportions of service contracts sold on treadmills versus exercise bikes.
Find the mean, median, and mode for each quiz. Do these measures of center agree? Explain. Are the data symmetric or skewed? If skewed, which direction?
Why do states from the Midwest do so well? It is easy to jump to a false conclusion, but scatterplot in Display 3.7 can help you find a reasonable explanation.
In a sample of 100 Planter's Mixed Nuts, 19 were found to be almonds. Why would a quality control manager at Planter's need to understand sampling?
Calculate separately for the standard preparation and the test preparation Pearson's correlation coefficient between the log clotting times and log dose.
State the result of your analysis. This should include the updated ANOVA table and the updated regression table.
Generate the distribution of the total profit at year 10 and plot the histogram. What is the probability that drug will add value to Lilly?
We are interested in studying the relationship between the prevalence of hypertension in adolescents and ethnic groups.
Fit the mean log distance as a function of order from the sun. Obtain the least squares estimates of slope and intercept. Write the fitted regression equation.
Calculate the value of the estimated standard error of the difference between the sample means.