A cube. The top face has points A, G, E, F and the bottom face has points B, H, D, C. The diagonal from A to E is StartRoot 288
EndRoot inches and the diagonal from A to D is StartRoot 432 EndRoot inches.
What is the length of ED in the given cube? Round to the nearest tenth of an inch if necessary.
in.
What is the length of ED in the given cube? Round to the nearest tenth of an inch if necessary.
in.
2 answers:
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Answer:
Step-by-step explanation:
Given that:
Population Mean = 7.1
sample size = 24
Sample mean = 7.3
Standard deviation = 1.0
Level of significance = 0.025
The null hypothesis:
The alternative hypothesis:
This test is right-tailed.
Rejection region: at ∝ = 0.025 and df of 23, the critical value of the right-tailed test
The test statistics can be computed as:
t = 0.980
Decision rule:
Since the calculated value of t is lesser than, i.e t = 0.980 < , then we do not reject the null hypothesis.
Conclusion:
We conclude that there is insufficient evidence to claim that the population mean is greater than 7.1 at 0.025 level of significance.