Question

sales by strategy (millions of dollars)
strategy 1 strategy 2 strategy 3 strategy 4
3 16 8 4
3 2 9 4
15 7 13 13
2 2 6 7
12 7 7 5
12 3 6 8
3 8 8 7
3 5 6 6
5 12 12 13
3 5 6 5
9 3 8 7
copy data
sst ≈ 22.3636
sse ≈ 573.6364
step 3 of 4: find the mean square for treatments, mst. round your answer to four decimal places.
answer 1 point

Explanation:

Step1: Recall formula for MST

$MST=\frac{SST}{k - 1}$, where $SST$ is the sum - of - squares due to treatment and $k$ is the number of treatments. Here, $k = 4$ (4 strategies) and $SST\approx22.3636$.

Step2: Calculate denominator

$k - 1=4 - 1 = 3$.

Step3: Calculate MST

$MST=\frac{22.3636}{3}\approx7.4545$.

Answer:

$7.4545$