Hello, I'm trying to understand this assignment but thing is that I don't have enough knowledge on the topic I just need an explanation on these linear regression questions. hopefully, this is clear for you if not please let me know.

Name: Date: 6- 2-2021 Teacher: Ms.A Due date: 6-4-2021 Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. At a plant that manufactures bars of steel, a machine is used to cut the bars to specic lengths. The machine has a dial that sets the length of the bars to be out. However, the dial is currently out of alignment and the plant manager is collecting data to assess the situation. The following table shows 8 trials at different dial settings along with the actual output length of the bars that were out. All measurements are in millimeters. Dial Setting 75 w 79 _ so .1 .2 as I_ as (a) Use the following grid to construct a scatterplot in which dial setting is the explanatory variable and output length is the response variable. Based on your graph, does a linear model seem appropriate? Justify your answer. Output Length (millimeters) Dial Setting b) Use the data to construct a least-squares regression line to predict output length from dial setting. (c) Assume that all conditions for inference are met. Indicate the hypotheses appropriate to test whether there is a linear relationship between output length and dial setting. {d} The test statistic for the appropriate test is t=9.018. Do the data provide convincing statistical evidence that there is a linear relationship between output length and dial setting