Solve

Question 1

Find each of the following probabilities and draw a graphical display, shading the desired area
A) p( z < 1.23)
B) p (z > -1.59)
C) p(0.46 < z < 3.11)
D) p(z > 5.00)

Answer 1

Refer to hw 6 # 9

Question 2

Consider the following statement :50 people were selected at random from those attending a football game the proportion of these 50 who made a food or beverage purchase while at the game was 0.83
A) is the number 50 a sample size or a population?
B) is the number 0.83 a sample proportion, or a population proportion
C) which of the following notations is correct. P=0.83 or phat =0.83?

Answer 2

A) sample
B) sample
C) phat

Question 3

Consider the following statement, the department of motor vehicles reports that the proportion of all vehicles registered in California that are imports is 0.22.
A) is the number 0.22 a sample proportion or a population proportion?
B) which of the following notations is correct p=0.22 or phat=0.22?

Answer 3

A) population
B) p