One way to improve the response rate for a survey is to administer the surveys directly to the ...

One way to improve the response rate for a survey is to administer the surveys directly to the respondents.
 
  Indicate whether the statement is true or false

Q. 2

If the residuals for a regression model exhibit a parabolic shape, this would violate the assumption of ________.
 
  A) homoscedasticity
  B) linearity
  C) autocorrelation
  D) normality of errors

Q. 3

Briefly discuss what is meant by the dummy variable trap.
 
  What will be an ideal response?

Q. 4

The inventory level that triggers an order is called the ________.
 
  A) lot size
  B) order quantity
  C) reorder point
  D) rate of return

Q. 5

The basic difference between a point estimate and a confidence interval is ________.
 
  A) a point estimate is used to estimate a sample statistic while a confidence interval is used to determine a population parameter
  B) confidence intervals are statistically more certain than point estimates
  C) a point estimate combines sampling error in a single value while a confidence interval is a range of value estimates
  D) a point estimate is a single value while a confidence interval is a range of values