Based on the chart above, does there appear to be an association between time of day

question.docx

time of day at least 60%?

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

morning: 6 AM - noon yes

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

morning: 6 AM - noon yes

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

morning: 6 AM - noon no

evening: 6 PM to midnight no

morning: 6 AM - noon no

evening: 6 PM to midnight yes

evening: 6 PM to midnight no

evening: 6 PM to midnight yes

morning: 6 AM - noon yes

evening: 6 PM to midnight yes

morning: 6 AM - noon no

evening: 6 PM to midnight no

1. Based on the chart above, does there appear to be an association between time of day and number of items remembered? Explain.

2. State the null and alternative hypotheses in notation and words.

3. Which test will you use to test the above null hypothesis? Why?

4. Give the test-statistic (with degrees of freedom if it has degrees of freedom) and the p-value.

5. Based on the p-value, does there appear to be an association between time of day and number of items remembered?

6. Does the conclusion from the hypothesis test support what you see in the side-by-side bar chart?