The probability of making a Type I error is __________. Fill ...

[berenicecastro]

The probability of making a Type I error is __________.
 
  Fill in the blanks with correct word

Question 2

Of the following, indicate which is not a measure of variability
 
  a. range
  b. percentile
  c. standard deviation
  d. variance
 
  Questions 46 through 54 will be based on the following:
  A researcher gives IQ tests to a large group of adults, and discovers that the
  mean, median and mode all equal 100. The highest score in the group was 130
  and the lowest was 70. Between IQ's of 75 and 125, 80 of the group was found,
  and 50 were found between IQ's of 90 and 110. The shape of the graphed
  distribution was mesokurtic.

[Expo]

Answer to Question 1

Alpha, the significance level,

Answer to Question 2

b