Re one altemative that best completes the statement or answers the question Solv

Question

Re one altemative that best completes the statement or answers the question Solve the problem. 1) Given that the sum of squares for treatments (SST) for an ANOVA F-test is 9,000 a nd there are four1 total treatments, find the mean square for treatments (MST). ?) 1,500 3,000 C) 1,800 D, 2,250 2) Find the following P(F 2.52), for 1-3, 2 14 2) A) 0.85 B) 0.05 9o.1 D) 0.90 HORT ANSWER. Write the word or phrase that best completes each statement or answes s the q 3) In a completely randomized design experiment, 10 experimental units were randosnly 3) chosen for each of three treatment groups and a quantity was measured for each within each group. In the first steps of testing whether the means of the same, the sum of squares for treatments was calculated to be 3,110 and the sum of squares for error was calculated to be 27,000. unit the three groups ane Complete the ANOVA table. Treatments IPLE CHOICE. Choose the one alternative that best completes the statement or answers the question 4) A certain HMO is attempting to show the benefits of managed care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One theory is that certification level is an important factor in measuring the cost-effectiveness of p?.ysicians. To investigate this, the HMO obtained independent random samples of 25 physicians from each of th three certification levels-Board certified (C); Uncertified, board eligible (E); and Uncertified, boas ineligible (D)-and recorded the total per-member, per-month charges for each (a total of 25 physicians). In order to compare the mean charges for the three groups, the data will be subjecte to an analysis of variance. Write the null hypothesis tested by the ANOVA. A) Ho:p1 p2 p3

Explanation / Answer

1)
df treatment = 4-1 =3
MST = SST/df
= 9000/3 = 3000
B) is correct

2)

using excel
=F.DIST.RT(2.52,3,14)
= 0.1

or same can be found using F distribution tables

C) is correct

4)

option B) is correct

ANOVA Source of Variation SS df MS F Between Groups 3110 2 1555 1.555 Within Groups 27000 27 1000 Total 30110 29

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