Suppose a survey is taken of two groups of people where each ...

[geodog55]

Suppose a survey is taken of two groups of people where each person is asked a yes/no question and the proportion of people who answer yes is calculated for each group.
 
  Which of the following is true about a hypothesis test of the difference in the two proportions?A) Normality can be assumed if the sample size for each population is at least 30.
  B) The t-distribution should be used if the standard deviations are unknown.
  C) The standard deviation must be assumed equal.
  D) Normality can be assumed if, in each group, at least 5 people say yes, and at 5 people say no.

Question 2

The constraint that models the stated price range of a standard suite is ________.
 
  A) 70  S  90
  B) 90S2 - 70S  0
  C) 70S2 - 90S  0
  D) 35  S  45

[lin77x]

Answer to Question 1

D

Answer to Question 2

A

[geodog55]

Thanks for the timely response, appreciate it

[ricroger]

Wow, this really help