Part I. Chi-Square Goodness of Fit Test (equal frequencies)

Four different brands of a pain medication used for chronic back ailments were tested to see if the number of side effects for each brand were the same. The table below lists the results of the reported number of side effects for each brand of pain medication.

[Hint: Be sure to watch the helper video available on the "Chi-Square Goodness-of-Fit test (equal frequencies)" before attempting this problem. Instructions for performing this test in STATDISK can be found in the Statdisk User Manual.]

Instructions Answers

1. Use the Chi-Square Goodness-of-Fit test to see . Use a significance level of .01.
Paste results here.----------------------------------

2. What are we trying to show here? We are trying to check whether the side effects for all brands are same. ------------------------------
The number of side effects of pain medicine are not same for all four brands.

3. What is the p-value and what does it represent in the context of this problem? From the output, thes than the significance level, ----------hypotheses.

4. State in your own words what the results of this Goodness-of-fit test tells us. Hence, it can be concluded that there is not ----------------------------

5. Repeat the above procedure using only Brands A,, and D. ------------------e are completely different compared to previous conclusion.
In this case, the -------------------- which is higher than the significance level. Therefore, do not reject the null hypothesis.
Hence, -----------------------------------

Part II. Chi-Square Goodness of Fit Test (unequal frequencies)

An opinion poll was taken to see how people felt about Health Care reform. Previous poll results indicate----------------------------------
This year, the following results were observed:
FOR: 3----------------- people AGAINST: ----------- people UNCERTAIN: