Identify the most appropriate test to use for the following situation Quart

# Identify the most appropriate test to use for the

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Identify the most appropriate test to use for the following situation: Quart cartons of milk should contain at least 32 ounces. A sample of 22 cartons was taken and amount of milk in ounces was recorded. We would like to determine if there is sufficient evidence exist to conclude the mean amount of milk in cartons is less than 32 ounces? a) Two sample z test for means b) One sample t test for means c) Two sample t test for means d) Two sample z test for proportions e) One sample z test for means f) One sample z test for proportions g) Matched pairs t test for means Question 7 Your answer is CORRECT. A random sample of 169 cans of fruit nectar is drawn from among all cans produced in a run. Prior experience has shown that the distribution of the contents has a mean of 14.11 ounces and a standard P ( A ) = 0.32, P ( B ) = 0.48, and P ( A B ) = 0.17 P ( B | A ) 7/27/16, 12 : 37 PM Print Test Page 4 of 9 deviation of 2.18 ounce. What is the probability that the average contents of the 169 sample cans is less than 13.74 ounces? a) 0.973 b) 0.014 c) 0.034 d) 0.027 e) 0.986 Question 8 Your answer is CORRECT. A random variable X has a probability distribution as follows: X 0 1 2 3 4 P( X ) 3 k 2 k 5 k 3 k 4 k What is P(X < 2)? a) b) c) d) e) Cannot be determined. Question 9 Your answer is CORRECT. Find a value of so that . a) 1 17 13 17 5 17 10 17 c P ( Z c ) = 0.77 0.962 7/27/16, 12 : 37 PM Print Test Page 5 of 9 b) c) d) e) Question 10 Your answer is CORRECT. The following table displays the results of a sample of 100 in which the subjects indicated their favorite ice cream of three listed. The data are organized by favorite ice cream and age group. What is the probability that a person chosen at random will be under 20 years old if he or she favors chocolate? Age Chocolate Vanilla Strawberry Over 40 12 8 10 20-40 15 8 12 Under 20 11 16 8 a) b) c) d) e) Question 11 Your answer is CORRECT. A random sample of 100 observations produced a sample proportion of 0.25. An approximate 95% confidence interval for the population proportion p is between a) 0.165 and 0.335 0.417 1.080 0.739 1.153 11 38 89 100 11 100 11 30 27 38 7/27/16, 12 : 37 PM Print Test Page 6 of 9 b) 0.165 and 0.321 c) 0.179 and 0.321 d) 0.207 and 0.293 e) 0.152 and 0.348 Question 12 Your answer is CORRECT.  #### You've reached the end of your free preview.

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