A sample mean of 42 observations is selected from one population with a population standard deviation of 4.5. The sample mean is 101.5. A sample of 49 observations is selected from a second population with a population standard deviation of 4.0. The sample mean is 99.5. Conduct the following test hypothesis using the 0.05 significance level. What is the intervals, and the decision rule?Compute value of test statistic. What is the p-value?

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

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