Can someone solve this question? (all the parts correctly and explain pls) An ar
ID: 3231263 • Letter: C
Question
Can someone solve this question? (all the parts correctly and explain pls)
An article in Lubrication Engineering (December 1990) described the results of an experiment designed to investigate the effects of carbon material properties on the progression of blisters on carbon face seals. The carbon face seals are used extensively in equipment such as air turbine starters. Four different carbon materials were tested, and the surface roughness was measured. The data and Excel output are as follows: Determine if the carbon material type significantly affects surface roughness. What topic is this problem about? What are the treatments? Are they in rows or columns? What are the null and alternative hypotheses, in words? What Excel output will you need to use to determine the conclusion to your hypothesis test?Explanation / Answer
Q.1 This Problem is on the topic of Ane way Analysis of variance.
Q.2 The treatments are: Carbon material such as: EC10, EC10A, EC4,EC1. They are in rows.
Q.3 Null Hypothesis: All the population means are equals.
VS
Alternative Hypothesis: All the population means are not equals(i.e. at least one mean is different).
Q.4. The F-value and F-critical values are required to test the hypothesis.
If F-value > F-critical Reject the null hypothesis otherwise accept.