Please keep in mind that any notes, videos, and calculators provided on this page are no substitute for attending class. These resources are here to supplement the information from your instructor and textbook. First and foremost please be sure to follow any directions and use any resources your teacher provides.
Either hypothesis—the null hypothesis or the alternative hypothesis—may represent the original claim!
Regardless of whether you're making a statement about the mean or a proportion, regardless of which hypothesis is the claim, remember that the null hypothesis must contain a symbol of equality and the alternative hypothesis must complement it. Here are some examples of possible hypothesis pairs:
Note: For an example of making a prediction or forecast using your pre-calculated linear regression equation, skip to 7:25 and watch until 8:15. Also note that the presenter arbitrarily rounds the values of a and b. Be sure to round as indicated on your homework, quizzes, or tests.
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