TI-84 and TI Inspire Statistics

Mr. Armatage explains how to use calculators for one proportion Z tests, using the Flint Water Crisis as an example. He provides detailed instructions for both the TI-84 and TI Inspire calculators, highlighting the steps to perform the test and interpret results. The video emphasizes the importance of checking conditions and understanding the null and alternative hypotheses. Additional features of the calculators, such as the draw option on the TI-84, are also discussed.

What is the primary advantage of using a calculator for one proportion Z tests?

• It simplifies the calculation process.

• It automatically interprets the results.

• It provides a visual representation of the data.

• It eliminates the need to check conditions.

In the example problem, what percentage of the sample had heard stories?

• 60%

• 50%

• 40%

• 30%

What is the null hypothesis in the example problem?

• P is not equal to 0.5

• P is less than 0.5

• P is equal to 0.5

• P is greater than 0.5

Which button do you press first on the TI-84 to start a one proportion Z test?

• Mode

• Graph

• Stat

• Menu

What is the test statistic Z value obtained using the TI-84 in the example?

• -2.74

• -2.68

• -2.70

• -2.72

On the TI Inspire, which menu number corresponds to statistical tests?

• 6

• 8

• 5

• 7

What is the alternative hypothesis option selected for the example on the TI Inspire?

• Not equal to 0.5

• Greater than 0.5

• Equal to 0.5

• Less than 0.5

What unique feature does the TI-84 have that the TI Inspire does not?

• Draw option for normal curve

• Graphing capabilities

• Faster processing speed

• Larger screen

What percentage is used in the alternative example to demonstrate the draw feature on the TI-84?

• 45%

• 40%

• 50%

• 47%

What is the main limitation of the draw feature on the TI-84?

• It is not accurate.

• It requires additional software.

• It uses large pixels.

• It is difficult to access.