Which of the following would be the recommended action if the expected frequency for a particular category is less than 5 in the goodness-of-fit chi-square test?
a. Decrease the significance level so that each category will have an expected frequency greater than 5.
b. Combine adjacent cells so that the result will have an expected frequency greater than 5.
c. Increase the sample size so that each category will have an expected frequency greater than 5.
d. Either b or c could be used to ensure that each category will have an expected frequency greater than 5.
e. Either a, b or c could be used to ensure that each category will have an expected frequency greater than 5.
Question 2
The chi-square test statistic is chi-squared distributed with n - 1 degrees of freedom only if the:
a. population is normally distributed.
b. sample is normally distributed.
c. sample has a Student t-distribution with degrees of freedom equal to n - 1.
d. population has a Student t-distribution with degrees of freedom equal to n.
Mechanisms of action of anticoagulants
Permeability to Ions During the Action Potential
Normal oxygen sensor frequency is from about one to five times per second.
A model of T7 gp4 helicase action
The expected results of two generations of semiconservative replication
Stomata in action