Chapter 11: Q. 49 (page 657)
State the decision and conclusion (in a complete sentence) for the following preconceived levels of \(\alpha\).
\(df=\)___
The degree of freedom \(df\) is \(4\).
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Is this a right-tailed, left-tailed, or two-tailed test?
Read the statement and decide whether it is true or false.
In a goodness of fit test, if the p-value is , in general, do not reject the null hypothesis
A teacher predict that the distribution of grades on the final exam will be and they are recorded in table 11.27
The actual distribution for a class of 20 is in table 11.28
H0: __________
Determine the appropriate test to be used in the next three exercises.
An economist is deriving a model to predict outcomes on the stock market. He creates a list of expected points on the stock market index for the next two weeks. At the close of each day's trading, he records the actual points on the index. He wants to see how well his model matched what actually happened.
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