Question S 2 pts Problem 4 Difference of Means Test. A study was conducted look

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Question S 2 pts Problem 4 Difference of Means Test. A study was conducted look at the effectiveness of location in a Spruce moth trap. The Spruce Budworm is a major parisite of connifer trees Traps were set on the ground (Ground) and up in the tree (InTree). The response variable was the number of moths collected in the trap. The total sample size was 45 (15 on the group and 30 up in the tree). Oneway Analysis of Moths By Location 45 40 35 30 25 20 15 10 Ground Location Mean Median Std DeviN Ground 19.0718.00 5.09 12.00 29.00 15.00 InTree Location a. Is it reasonable to assume the two variances are equal? Please state why or why not.

Explanation / Answer

a) No, it is not reasonable to assume the two variances are equal because the pread of inTrea is approximately double time of spread of Ground.

b) The estimated p-value in both the assumtion of equal variance and unequal variances are less than 0.01 level of significance. Hence, we can conclude that the number of moths collected in the tap at two different locations has significance difference at 0.01 level of significance.

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