A manufacturer evaluates a new pregnancy test. The manufacturer ...

[JGIBBSON]

A manufacturer evaluates a new pregnancy test. The manufacturer enlists 500 study subjects, 190 pregnant females (of whom 150 had a positive test) and 310 nonpregnant females (of whom 296 had a negative test).
 
  Positive Test
  Negative Test
 
  Pregnant
 
   150
   40
 
  Non-Pregnant
 
   14
   296
  Calculate the predictive value for a positive test.
  A) 79
  B) 88
  C) 91
  D) 95

Question 2

All of the following are true statements about nonparametric methods of normal range determination EXCEPT:
 
  A) Nonparametric methods require a larger number of samples to estimate the normal range with accuracy than do parametric methods.
  B) Outlying values influence the normal range more than for parametric methods.
  C) A Gaussian distribution is required to utilize the nonparametric approach.
  D) The nonparametric approach makes no assumption as to distribution.

[hanadaa]

Answer to Question 1

Ans: C

Answer to Question 2

Ans: C

[JGIBBSON]

Both answers were spot on, thank you once again

[hanadaa]

Great! Please up vote