Question

Hi,

I need some assistance with my stats homework. I will leave a screenshot of the problem below. in addition, my instructor does encourage using Minitab so if you do use it please provide a walkthrough of the steps you did in Minitab when you provide your answer.

Thank you!

2. A rifle club performed an experiment on a randomly selected group of beginning shooters. The purpose was to determine whether shooting accuracy is affected by the method of sighting used: right eye open, left eye open, or both eyes open. Each student was given the same number of rounds to shoot at a target. Their scores are below. At the 5% significance level, is accuracy affected by the sighting method used? Left Eye 10 17 16 13 Both Eyes 16 14 16 Right Eve 12 10 18 12 14 20 21

Answer 1

Date: 09/05/2019 Answei To test the hypothesis is that the mean score in the three sighting method is not all equal at 5% level of significance. The null and alternative hypothesis is, H: at least one u, is unequal. The F-test statistics is By using MINITAB software, find F-test statistics with the help of following steps 1) Import the data 2) Choose One-Way from ANOVA in Stat menu 3) Choose Response variable and Factor Variable 4) Click Ok.

One-way ANOVA: Frequency versus Group Source DFSS MS Group 2 29.2 14.6 1.29 0.312 Error 12 136.1 11.3 Total 14 165.3 From the MINITAB output, the F-test statistics is 1.29 The p-value for this test is From the MINITAB output, thep value for this test is 0.312 Decision The conclusion is that p-value in this context is higher than 0.05 which is 0.312, so the null hypothesis is not rejected at 5% level of significance. There is insufficient evidence to indicate that the mean score in the three sighting method is not all equal. The result is not statistically significant.