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9.2 Exit Ticket - Chi Squared Test for Independence (4/4/2025)

Last updated 20 days ago

5 Nsɛmmisa

A group of adults who use either Mac or PC computers were surveyed. The results were recorded according to their age group and are shown below.

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1.

Write down the total number of computer users surveyed.

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2.

A X² test was conducted at the 5% significance level.
Write down the null hypothesis for this test.

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3.

Write down the alternate hypothesis for this test.

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4.

Using your graphics display calculator, find the X² statistic.

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5.

The critical value at the 5% significance level is 5.99.
State the conclusion of this test. Give a reason for your answer.