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No. & Date AskedQuestion
# 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
Question 812 has been Answered
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
Question 701 has been Answered
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
Question 660 has been Answered
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
Question 501 has been Answered
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
Question 418 has been Answered
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
Question 399 has been Answered
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
Question 388 has been Answered
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
Question 368 has been Answered
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
Question 353 has been Answered
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
Question 325 has been Answered
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
Question 319 has been Answered
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
Question 287 has been Answered
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
Question 269 has been Answered
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
Question 199 has been Answered
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
Question 175 has been Answered
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