Statistics
posted by Becky .
Discuss how a t Test can be employed in hypothesis testing by the use of directional vs. non directional hypotheses. Discuss types of research where using the t statistic may be an appropriate alternative to using a zscore.

Usually you use ztests when sample sizes are large (n is greater than
or equal to 30) whether or not you know the population standard deviation.
If you do not know the population standard deviation and have a small
sample (n < 30), then you can use ttests.
The alternate or alternative hypothesis tells you whether or not the test is directional or nondirectional. If the alternate hypothesis uses "greater than" or "less than" symbols, the test is directional. If the alternate hypothesis uses "does not equal" in its statement, then the test is nondirectional.
I hope these few hints will help. 
The computed t was .926 with df of 24 for p>.o5. what may you say about the null hypothesis?

THE fRATIO WAS 2.293 WITH DF OF (12,8)) FOR P>.05. What may you say about the alternate hypothesis.

I would say the alternate hypothesis is rejected
Respond to this Question
Similar Questions

Statistics
Does the null hypothesis for a nondirectional alternative hypothesis differ from the null hypothesis for a directional alternative hypothesis? 
hypothesis statistic
how a t Test can be employed in hypothesis testing by the use of directional vs. nondirectional hypotheses. Discuss types of research where using the t statistic may be an appropriate alternative to using a zscore. Respond to at least … 
stat
If you test the (one sample) null hypothesis that the population proportion p ¡Ü 0.3 and you get the test statistic value of z = 0.98, then using a 5% ignificance level, Question 18 options: the alternative hypothesis looks believable. … 
Statistics
1. For the following research question, specify the parameter and give the null and alternative hypotheses. "Is there a difference in the proportions of male and female college students who smoke cigarettes? 
Statistics
Directional and nondirectional hypotheses can be easily interchanged according to the hypothesis the researcher is testing. For instance, a drug company might predict that a drug will help a subject lose weight while another drug … 
Statistics
Describe a situation in which you would test a directional hypothesis. Be sure to state the independent variables (e.g., drug or placebo) and the dependent variables (e.g., weight loss) clearly and explain why the hypothesis is directional. … 
Statistics Help!
An insurance company asks you to determine whether older drivers are safer than younger ones. Provide a directional hypothesis related to this study. Then, explain how you would need to change the hypothesis so that it would be nondirectional. … 
statistics
Directional and nondirectional hypotheses can be easily interchanged according to the hypothesis the researcher is testing. For instance, a drug company might predict that a drug will help a subject lose weight while another drug company … 
Statistics
why using the t statistic may be an appropriate alternative to using a zscore 
Psychology Stats and Research
Although there is a popular belief that herbal remedies such as Ginkgo biloba and Ginseng may improve learning and memory in healthy adults, these effects are usually not supported by wellcontrolled research (Persson, Bringlov, Nilsson, …