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| Teaching Since: | Apr 2017 |
| Last Sign in: | 361 Weeks Ago |
| Questions Answered: | 12843 |
| Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Use the following information to answer Questions 13-15.
Crusty’s pizza management has been judiciously collecting data on their customers spending habits. Management has determined that 67% of the people that order a small pizza also order breadsticks. Assume binomial distribution.
1) In a random sample of 15 customers who order a small pizza, what is the probability that 9 or more will order breadsticks?
A. 0.8049
B. 0.1114
C. 0.7528
D. 0.6412
2) In a random sample of 15 customers who order a small pizza, what is the probability exactly 12 will order breadsticks?
A. 0.3215
B. 0.9167
C. 0.1338
D. 0.0894
3) What is the expected number of customers who order breadsticks with their small pizza order?
A. 7.50
B. 10.05
C. 15.00
D. 4.95
Use the following information to answer Questions16-19.
Crusty’s Pizza management has been weighing their large pepperoni pizzas. They have found that the weight follows the normal distribution with a mean of 23.8oz and a standard deviation of 2.3oz.
4) What is the probability that a pepperoni pizza weights more than 21.6oz?
A. 0.1098
B. 0.8902
C. 0.1794
D. 0.8306
5) What is the probability that a pepperoni pizza weights exactly 23.8oz?
A. 0.0000
B. 0.5000
C. 0.8745
D. 0.4812
6) What is the weight of a pepperoni pizza that weights more than 90% of all the pepperoni pizzas made?
A. 29.75oz
B. 20.85oz
C. 26.75oz
D. 18.42oz
7) When using a standard control chart, which of the following indicate a process may be out of control?
A. A point above the upper control limit
B. 8 consecutive points above the mean
C. A point that is 1.5 standard deviations above the mean.
D. Both A and B
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