In an experiment to determine the effectiveness of sleepindu

In an experiment to determine the effectiveness of sleep-inducing drugs, 18 insomniacs were randomly assigned to three treatments: 1. Placebo (no drug) 2. standard drug 3. new experimental drug The response as shown in Table 6.33 is average hours of sleep per night for a week. perform the appropriate analysis and make any specific recommendations for use of these drugs.

Solution

Mean for average hour of sleeping is 7.95 for treatment 2.

So, Treament 2 i.e Standard Drug is the most effective drug to induce sleepness.

	Treatment
	1	2	3
	5.6	8.4	10.6
5.7	8.2	6.6
5.1	8.8	8
3.8	7.1	8
4.6	7.2	6.8
5.1	8	6.6
Total	29.9	47.7	46.6
Mean	4.983333	7.95	7.766667