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Activity Overview

In this activity, students evaluate hypotheses.

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Before the Activity

See the attached PDF file for detailed instructions for this activity
Print pages 89 - 100 from the attached PDF file for your class
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During the Activity

Distribute the pages to the class.

Follow the Activity procedures:

Testing Hypothesis of a Population Mean:

Store the data as a list
Calculate the z value if the standard deviation is known, else find the t value
Check whether the t or z values are positive or negative
Determine the p-value and evaluate the hypothesis
Testing Hypothesis of a Population Proportion:

Decide if you can use a normal distribution to approximate the binomial
Enter the values
Calculate the z-score
Determine the p-value and evaluate the hypothesis
Testing Hypothesis of a Normal Population Standard Deviation:

Enter the data
Realize that if the data is normally distributed, the sampling distribution is chi-square distributed
Determine the left-tail probability of the chi-square distribution [the p-value]
Evaluate the hypothesis on the basis of the p-value
Testing Hypothesis of Two Population Means:

Store the data as lists
Enter the values for means, standard deviations, and sample sizes
Perform a two-sample T test, if the standard deviations are known
Perform a two-sample Z test, if the standard deviations are unknown
Determine the p-value and evaluate the hypothesis
Testing Hypothesis of Two Population Proportions:

Enter the values to calculate the proportion
Determine the p value to evaluate the hypothesis
Calculate the pooled proportion and the standard score
Testing Hypothesis of Standard Deviations of Two Normal Populations:

Sort the data and store it in lists
Determine the p and F values and evaluate the hypothesis
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After the Activity

Review student results:

As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary