A Test of Spelling Ability Is Given to a Random

question 12

Essay

A test of spelling ability is given to a random sample of 10 students before and after they completed a spelling course. The mean score before the course was 119.60 and after the course the mean score was 130.80. The standard deviation of the difference was 16.061. Assume that the difference in scores is normally distributed.
-Setup the null and alternative hypothesis to test the claim that the test score is not affected by the course.

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Definitions:

Ultimate Shape

The final form or structure something takes after all changes or developments have been completed.

Program On Negotiation

An inter-university consortium dedicated to developing the theory and practice of negotiation and dispute resolution, based at Harvard Law School.

Dispute Resolution

A process aimed at resolving conflicts between parties through negotiation, mediation, arbitration, or judicial methods.

Public Awareness

The extent to which the general population is informed about a particular issue, topic, or campaign.