Grade 11 and 12 Mathematics (Moderator: geoffrey)

The sign test is a nonparametric procedure for testing whether two populations have identical a. ...

Started by joe

The total area under the normal probability distribution curve is equal to 1. Indicate whether the ...

Started by DyllonKazuo

If the null hypothesis is actually false, then a hypothesis test may result in a Type II error. ...

Started by Anajune7

One difference between a binomial random variable x and a standard normal random variable z is that ...

Started by nummyann

If a hypothesis test leads to incorrectly accepting the null hypothesis, a Type I error has been ...

Started by penza

Which of the following statements is false regarding the sign test? a. It is the nonparametric ...

Started by james

The time it takes a student to finish a final exam test is known to be normally distributed with a ...

Started by dbose

Using the standard normal curve, the area between z = 0 and z = 3.50 is about 0.50. Indicate ...

Started by tiara099

Type II error is typically greater for two-tailed hypothesis tests than for one-tailed tests. ...

Started by RRMR

Explain how the sign test is based on the binomial distribution and is often approximated by the ...

Started by Mollykgkg

Using the standard normal curve, the z-score representing the 10th percentile is 1.28. Indicate ...

Started by Marty

A quality control officer tests bottles of shampoo to see if the filling machines are putting the ...

Started by laurencescou

A restaurant has collected data on which of two seating arrangements (A and B) its customers prefer. ...

Started by yoroshambo

Using the standard normal curve, the z-score representing the 90th percentile is 1.28. Indicate ...

Started by Collmarie

A government testing agency studies aspirin capsules to see if customers are getting cheated with ...

Started by bobthebuilder

Briefly discuss the assumptions for inferences about the median of paired differences using the sign ...

Started by Pea0909berry

In a criminal trial, a Type I error is committed when: a. a guilty defendant is acquitted b. an ...

Started by lracut11

Explain why a nonparametric test is not as sensitive to an extreme datum as a parametric test might ...

Started by lindiwe

For a normal curve, if the mean is 25 minutes and the standard deviation is 5 minutes, the area to ...

Started by melly21297

Which of the following statements is false when testing for randomness? a. The Runs test is used. ...

Started by jman1234

A proposition tentatively advanced as possibly true is called: a. an acceptance region b. a ...

Started by abarnes

In testing the randomness of data using the Runs test, when do we reject the null ...

Started by kaid0807

The first step in hypothesis testing is always: a. formulating two opposing hypotheses, called the ...

Started by frankwu

Spearman's rank correlation coefficient is an alternative to using the linear correlation ...

Started by rosent76

The erroneous acceptance of a null hypothesis that is in fact false can have consequences such as: ...

Started by lunatika