Dr. Maddan's eye drops are supposed to cause significant reduction is eye redness. The following table shows the results of a recent study where a random sample of individuals took part in a placebo controlled study. No Reduction in Redness Reduction in Redness Total Eye Drops 120 220 340 No Eye Drops Total 120 140 260 240 360 600 With 5% level of significance, determine if eye redness reduction is dependent upon taking the eye drops. Provide, a. the Chi-square statistic. b. the critical value or the p-value. c. Your decision on whether or not to reject Ho.

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Dr. Maddan's eye drops are supposed to cause significant reduction in eye redness. The following table shows the results of a recent study where a random sample of individuals took part in a placebo-controlled study.

|                         | Eye Drops | No Eye Drops | Total |
|-------------------------|-----------|--------------|-------|
| No Reduction in Redness | 120       | 120          | 240   |
| Reduction in Redness    | 220       | 140          | 360   |
| Total                   | 340       | 260          | 600   |

With a 5% level of significance, determine if eye redness reduction is dependent upon taking the eye drops. Provide:

a. the Chi-square statistic.

b. the critical value or the p-value.

c. Your decision on whether or not to reject Ho.
Transcribed Image Text:Dr. Maddan's eye drops are supposed to cause significant reduction in eye redness. The following table shows the results of a recent study where a random sample of individuals took part in a placebo-controlled study. | | Eye Drops | No Eye Drops | Total | |-------------------------|-----------|--------------|-------| | No Reduction in Redness | 120 | 120 | 240 | | Reduction in Redness | 220 | 140 | 360 | | Total | 340 | 260 | 600 | With a 5% level of significance, determine if eye redness reduction is dependent upon taking the eye drops. Provide: a. the Chi-square statistic. b. the critical value or the p-value. c. Your decision on whether or not to reject Ho.
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