Questions from Applied Statistics

Q: Interpret the slope. Does the intercept have meaning, given the

Interpret the slope. Does the intercept have meaning, given the range of the data? Midterm and Final Exam Scores for Business Statistics Students Fall Semester 2011 (n = 58 students) Midterm Exam Sc...

Q: (a) Use Excel’s function =RAND() or Excel’s Data

(a) Use Excel’s function =RAND() or Excel’s Data Analysis > Random Numbers to generate 100 uniformly distributed random numbers between 0 and 1. (b) Make a histo...

Q: (a) Use Excel’s Data Analysis > Random Numbers to generate

(a) Use Excel’s Data Analysis > Random Numbers to generate 100 Poisson-distributed random numbers with a mean of λ = 4. (b) Make a histogram of your sample and assess...

Q: Refer back to Table 15.11, which shows the distribution

Refer back to Table 15.11, which shows the distribution of the number of U.S. Supreme Court appointments per year from 1900–1999. Since 1999 there have been four Supreme Court appoin...

Q: The temperature control unit on a commercial freezer in a 24-

The temperature control unit on a commercial freezer in a 24-hour grocery store is set to maintain a mean temperature of 23 degrees Fahrenheit. The temperature varies because people are constantly ope...

Q: Refer to the freezer data’s 80 individual temperature observations in problem 17

Refer to the freezer data’s 80 individual temperature observations in problem 17.52. Problem 17.52: Refer to the freezer problem 17.51 with μ = 23 and σ =...

Q: A Nabisco Fig Newton has a process mean weight of 14.

A Nabisco Fig Newton has a process mean weight of 14.00 g with a standard deviation of 0.10 g. The lower specification limit is 13.40 g and the upper specification limit is 14.60 g. (a). Describe th...

Q: A new type of smoke detector battery is developed. From laboratory

A new type of smoke detector battery is developed. From laboratory tests under standard conditions, the half-life (defined as less than 50 percent of full charge) of 20 batteries are shown below. (a...

Q: A box of Wheat Chex cereal is to be filled to a

A box of Wheat Chex cereal is to be filled to a mean weight of 466 grams. The lower specification limit is 453 grams (the labeled weight is 453 grams) and the upper specification limit is 477 grams (s...

Q: For each sample, do a test for zero correlation. (

For each sample, do a test for zero correlation. (a) Use Appendix D to find the critical value of tα. (b) State the hypotheses about ρ. (c) Perform the t test and report your...