View Answered Questions
| No. & Date Asked | Question |
# 817 :: 10/8/09
|
1) Assuming in New York 80% of women and 50% of men know where Tiffany is. At a crossing I ask pedestrians for directions to Tiffany and get these ans. . .
Binomial Probability |
# 812 :: 10/2/09
 |
A Tamiami shearing machine is producing 10 percent defective pieces, which is abnormally high. The quality control engineer has been checking the outp. . .
BINOMDIST,
Binomial Probability |
# 701 :: 4/26/09
|
A local bakery determines that the probability of a customer ordering a blueberry muffin is 50%. 5 customers come into the bakery.
A. What is the pr. . .
BINOMDIST,
Binomial pmf,
Binomial Probability |
# 660 :: 3/18/09
|
Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number of aces drawn in a set of 4 cards.
If this expe. . .
Binomial Probability |
# 501 :: 11/7/08
|
In a survey of adults, 68% thought that DNA test for identifying an individual were very reliable. You randomly select 24 adults and ask each if he or. . .
BINOMDIST,
Binomial Probability,
Continuity Correction,
Normal Approximation,
Normal Approximation to Binomial |
# 418 :: 9/27/08
|
Dear Stats Person,
Here is my question. If a person were to guess a number from 1-10, the chance of guessing a 4 would be 0.1. If 5 people were a. . .
BINOMDIST,
Binomial Probability,
Binomial pmf |
# 399 :: 9/20/08
|
When you calculate CIs for time on task, I notice that you use the critical value from the t-distribution (TINV(0.05, degrees_of_freedom)). But when y. . .
exact interval,
Binomial Probability,
TINV,
Adjusted Wald,
Wald Interval,
Normal Approximation,
Small Sample |
# 388 :: 9/17/08
|
In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made. . .
2-proportion test,
Binomial Probability,
Normal Approximation |
# 368 :: 9/5/08
|
in a random sample of 200 person of a town 120 are found to the tea drinker.In a random sample of 500 person of another town 240 are found to be tea d. . .
Normal Approximation,
2-proportion test,
Binomial Probability |
# 353 :: 8/19/08
|
A surgical technique is performed on eight patients. You are told that there is an 80% chance of success.
a) Construct a binomial distribution.
. . .
BINOMDIST,
Binomial Probability |
# 325 :: 8/7/08
|
A doctor knows from experience that 20% of the patients to whom he gives a high blood pressure drug will have undesirable side effects. Assume the doc. . .
BINOMDIST,
Excel,
Binomial Probability |
# 319 :: 8/6/08
|
A machine cuts circular filters from large rolls of material. If 7.3% of the filters fail to meet specifications, use the normal approximation to the . . .
binomial,
Binomial Probability,
Normal Approximation,
Continuity Correction |
# 287 :: 7/23/08
|
in a study of 11000 car crashes it was found that 5720 of them occurred within 5 miles of home. use a 0.01 significance level to test tha claim that m. . .
Binomial Probability,
binomial,
BINOMDIST |
# 269 :: 7/9/08
|
A classical experiment in extrasensory perception (ESP) consists of asking a subject to tell, without looking, the suit of each card in a deck of Zene. . .
Z-Score,
Binomial Probability,
Normal Approximation,
binomial,
BINOMDIST |
# 199 :: 5/19/08
|
A local bakery determines that the probability of a customer ordering a blueberry muffin is 50%. 5 customers come into the bakery.
A. What is the pr. . .
Binomial Probability,
binomial |
# 175 :: 4/28/08
|
Suppose that in NY State, 35% of voters are Democrats, 30% are Republicans, and 11% are independent. You are conducting a poll by randomly calling reg. . .
Probability,
Multiplication Rule,
Binomial Probability,
Choose,
binomial,
Binomial pmf,
Binomial cdf |
