Questions from Applied Statistics

Q: The weight of a McDonald’s cheeseburger is normally distributed with a mean

The weight of a McDonald’s cheeseburger is normally distributed with a mean of 114 ounces and a standard deviation of 7 ounces. Find the weight that corresponds to each event. Show your work. a. High...

Q: (a) Use Excel to make a scatter plot of the

(a) Use Excel to make a scatter plot of the data, placing Floor Space on the X-axis and Weekly Sales on the Y-axis. Add titles and modify the default colors, fonts, etc., as you judge appropriate to m...

Q: An executive’s telephone log showed the lengths of 65 calls initiated during

An executive’s telephone log showed the lengths of 65 calls initiated during the last week of July. (a) Sort the data. (b) Find the mean, median, and mode. (c) Do the measures of cen...

Q: (a) Write the Excel function for the 10 percent trimmed

(a) Write the Excel function for the 10 percent trimmed mean of a data set in cells A1:A50. (b) How many observations would be trimmed in each tail? (c) How many would be trimmed overall?

Q: Scores on an accounting exam ranged from 42 to 96, with

Scores on an accounting exam ranged from 42 to 96, with quartiles Q1 = 61, Q2 = 77, and Q3 = 85. (a) Sketch a simple boxplot (5-number summary without fences) using a nicely scaled X-axis. (b) Descr...

Q: In 2007, total compensation (in thousands of dollars) for

In 2007, total compensation (in thousands of dollars) for 40 randomly chosen CEOs ranged from 790 to 192,920, with quartiles Q1 = 3,825, Q2 = 8,890, and Q3 = 17,948. (a) Sketch a simple boxplot (5-num...

Q: Waiting times (minutes) for a table at Joey’s BBQ on

Waiting times (minutes) for a table at Joey’s BBQ on Friday at 5:30 p.m. have quartiles Q1 = 21, Q2 = 27 and Q3 = 33. Using the inner fences as a criterion, would a wait time of 45 minutes be consider...

Q: Coffee temperatures (degrees Fahrenheit) at a certain restaurant have quartiles

Coffee temperatures (degrees Fahrenheit) at a certain restaurant have quartiles Q1 = 160, Q2 = 165, and Q3 = 170. Using the inner fences as a criterion, would a temperature of 149 be considered an out...

Q: CitiBank recorded the number of customers to use a downtown ATM during

CitiBank recorded the number of customers to use a downtown ATM during the noon hour on 32 consecutive workdays. (a) Find the mean, midrange, geometric mean, and 10 percent trimmed mean. (b) Do these...

Q: On San Martin Boulevard, embedded sensors kept track of the vehicle

On San Martin Boulevard, embedded sensors kept track of the vehicle traffic count each hour for five weekdays, Monday through Friday between 6 a.m. and 8 p.m. (5 weeks 3 14 hours 5 70 observations). (...