Green Cross of California offers four weight loss plans. A random sample from ea

Question

Green Cross of California offers four weight loss plans. A random sample from each plan was chosen. The following table represents the number of pounds each patient lost in one month. Does it make a difference which plan the patient selected? Explain. Use alpha = 0.05 S_B ^2 = 2.389, S_W ^2 = 7.1333 The passing rate in Math 150 is around 35%. This semester, a particular Math 150 class has 10 students. (a) What is the probability that at least one student will pass the class? (b) How many students do you expect to pass the class.

Explanation / Answer

1)

p-value = 0.795299 < 0.05

hence we fail to reject the null and conclude that there is no significant evidence that there is difference in which plan the patient selected

Anova: Single Factor SUMMARY Groups Count Sum Average Variance Plan A 6 23 3.833333 7.766667 Plan B 6 23 3.833333 8.166667 Plan C 6 15 2.5 4.3 Plan D 6 23 3.833333 10.96667 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 8 3 2.666667 0.34188 0.795299 3.098391 Within Groups 156 20 7.8 Total 164 23

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