View Answered Questions
| No. & Date Asked | Question |
# 679 :: 4/17/09
 |
State the null hypothesis, Ho,and the alternative hypothesis, Ha , that would be used to test the claim: The standard deviation has increased from its. . .
Null Hypothesis ,
Alternative Hypothesis |
# 587 :: 1/26/09
|
True or False
Generally speaking, the Null Hypothesis is set up for the purpose of either accepting or rejecting it.
If the Null Hypothesis is fal. . .
Null Hypothesis ,
Alternative Hypothesis |
# 576 :: 1/16/09
|
TRUE or FALSE
The level of significance is the probability that a true hypothesis is rejected.
A Type one error is also referred to as an alpha r. . .
Hypothesis Test,
Alternative Hypothesis ,
Alpha,
Null Hypothesis |
# 424 :: 9/29/08
|
A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first-time use. . .
1-sample t-test,
Alternative Hypothesis ,
Null Hypothesis ,
test statistic,
p-value |
# 345 :: 8/14/08
|
What are the 5 steps involved in hypothesis testing using the traditional/classical method; Can you use a simple real world example to explain it to m. . .
Null Hypothesis ,
Alternative Hypothesis ,
Hypothesis Test,
Steps in Hypothesis Test |
# 311 :: 8/4/08
|
A random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm. Assuming that the population standard deviation is know. . .
p-value,
Null Hypothesis ,
Alternative Hypothesis ,
Z-Statistic,
t-statistic |
# 257 :: 6/30/08
|
A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis tes. . .
Null Hypothesis ,
Alternative Hypothesis |
# 169 :: 4/25/08
|
Various temperature measurements are recorded at different times for a particular city. The mean of 25C is obtained for 60 temperatures on 60 differen. . .
Null Hypothesis ,
Alternative Hypothesis ,
t-statistic,
Z-Statistic,
1-sample t-test |
