View Answered Questions
| No. & Date Asked | Question |
# 678 :: 4/17/09
 |
A particular candidate claims she has the support of at least 60% of the voters in her district. A random sample of 150 voters yields 87 who support h. . .
test statistic,
Normal Approximation to Binomial |
# 639 :: 2/28/09
|
CherryBerry Soda, Inc. claims that 15 percent of the population can identify its products. In efforts to boost their identity, CherryBerry employs a f. . .
Normal Approximation to Binomial ,
1-Proportion Test |
# 525 :: 11/28/08
|
Does lovastatin (a cholesterol-lowering drug) reduce the risk of heart attack? In a Texas study,
researchers gave lovastatin to 2,325 people and an i. . .
2-proportion test,
Normal Approximation to Binomial |
# 515 :: 11/19/08
|
I run various A/B Split tests online. I always set all my tests for 10,000 visitors so page A and B are each equally rotated 5,000 times. My problem. . .
2-proportion test,
Normal Approximation to Binomial ,
Power,
A/B Testing |
# 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 |
# 429 :: 9/29/08
|
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule. . .
Normal Approximation to Binomial ,
1-Proportion Test |
# 357 :: 8/25/08
|
Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of cheap popcorn carefully counted 773 kernels and put them. . .
Confidence Intervals,
Normal Approximation to Binomial ,
Proportion |
# 97 :: 3/1/08
|
A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sample of 130 of the scho. . .
Normal Approximation to Binomial ,
BINOMDIST,
Continuity Correction,
1-Sample Proportion Test,
1-Proportion Test |
