posted 11 months ago

a. Graph the scatter plot.

b. Compute the value of the correlation coefficient.

c. Test the significance of the correlation coefficient. Use alpha equal to 0.05

d. Find the equation of the regression line.

e. Plot the regression line.

f. Find the residuals.

g. Graph the residual plot.

h. Find the three types of variation.

i. Find and interpret the coefficient of determination.

j. Find the sum of the squares of the residuals (least square).

k. Calculate and interpret the standard error S.

1. Test whether a linear relationship exists between x and y.

posted 1 years ago

posted 1 years ago

posted 1 years ago

posted 1 years ago

posted 1 years ago

a. What is the probability of selecting a shopper who visited a Korzinka store often and the store was in an enclosed shopping center?

b. What is the probability of selecting a shopper who never visited a Korzinka store given that the store was not in an enclosed shopping center?

posted 1 years ago

posted 1 years ago

posted 1 years ago

posted 1 years ago

a. Develop a 98% confidence interval for the population proportion that supports Mr. John Smith.

b. Is there evidence to conclude that more than 60% voters support Mr. Smith?Conduct your hypothesis test at 5%. Provide your hypotheses, test statistic,rejection region and conclusions.