Interaction effects are between independent variables.

Not all members of a sample are members of the population.

Find the control limits for the R-chart with = 0.02 and sample size of 15.

A) LCL = 0.007 and UCL = 0.033
B) LCL = 0.004 and UCL = 0.004
C) LCL = 0.003 and UCL = 0.007
D) The R is too small to determine control limits.

​Express a tax rate of 1.27% in dollars.

Nonparametric statistical tests are used in research situations in which the dependent variable is measured at which levels of measurement?

A) ratio
B) interval
C) nominal
D) incremental

John purchased 400 shares of MMM stock at 78. One year later he sold all 400 shares at 82. He paid a transaction fee of $19.95 for each transaction. What was his gain or loss on the sale?​