Questions from Essentials of Statistics

Q: The data for lot size (in acres) and assessed value

The data for lot size (in acres) and assessed value (in thousands of dollars) of a sample of homes in a particular area are on the WeissStats site. Do the data provide sufficient evidence to conclude...

Q: The data for home size (in square feet) and assessed

The data for home size (in square feet) and assessed value (in thousands of dollars) for the same homes as in Exercise 14.137 are on the WeissStats site. Do the data provide sufficient evidence to con...

Q: The data for average high and low temperatures in January of a

The data for average high and low temperatures in January of a random sample of 50 cities are on the WeissStats site. Do the data provide sufficient evidence to conclude that, for cities, average high...

Q: We repeat the data and provide the sample regression equations.

We repeat the data and provide the sample regression equations. a. Determine the standard error of the estimate. b. Construct a residual plot. c. Construct a normal probability plot of the residuals....

Q: The data from Exercise 14.40 for shell thickness and concentration

The data from Exercise 14.40 for shell thickness and concentration of PCBs of 60 Anacapa pelican eggs are on the WeissStats site. Do the data provide sufficient evidence to conclude that concentration...

Q: The data from Exercise 14.41 for gas mileage and engine

The data from Exercise 14.41 for gas mileage and engine displacement of 121 vehicles are on the WeissStats site. Do the data provide sufficient evidence to conclude that engine displacement and gas mi...

Q: We have presented simple qualitative data set for practicing the concepts.

We have presented simple qualitative data set for practicing the concepts. For data set, a. determine a frequency distribution. b. obtain a relative-frequency distribution. c. draw a pie chart. d. con...

Q: The data from Exercise 14.42 for estriol levels of pregnant

The data from Exercise 14.42 for estriol levels of pregnant women and birth weights of their children are on the WeissStats site. Do the data provide sufficient evidence to conclude that estriol level...

Q: The data from Exercise 14.43 for volume, in cubic

The data from Exercise 14.43 for volume, in cubic feet, and diameter at breast height, in inches, of 70 shortleaf pines are on the WeissStats site. Do the data provide sufficient evidence to conclude...

Q: The data from Exercise 14.80 for age and body fat

The data from Exercise 14.80 for age and body fat of 18 randomly selected adults are on the WeissStats site. a. Do the data provide sufficient evidence to conclude that, for adults, age and percentage...