*BONUS QUESTION* Felix is a quality control expert at a fact…
*BONUS QUESTION* Felix is a quality control expert at a factory that paints car parts. Their painting process consists of a primer coat, color coat, and clear coat. For a certain part, these layers have a combined target thickness of over 150 microns, on average. Felix measured the thickness of 40 randomly selected points on one of these parts to see if it was painted properly. His sample had a mean thickness of 147 microns and the population standard deviation of 3.3 microns. The sample histogram shows a symmetric, bell-shaped curve and the chosen significance level is 4% . Answer the questions below. For full credit, you must include all of the following in the space provided: 1) The appropriate confidence interval. Round your final answers to two decimal places. 2) Write a sentence interpreting your interval. 3) Based on your interval, is it plausible that this part’s average thickness is meeting the target value? Why or why not? (This does not need to be more than 1-2 sentences.)
Read DetailsWrite the correct p-value statement for the following proble…
Write the correct p-value statement for the following problem. You may or may not want to copy/paste one of the following symbols into your p-value statement, ≥ ≤ ≠{“version”:”1.1″,”math”:”≥ ≤ ≠”} Round your test statistic to 2 decimal places. A company is cutting sirloin stakes. They are inspecting the machine that cuts the 12 ounce sirloins because they believe the machine is malfunctioning. They took a random sample of 35 cuts made by this machine And found that the sample had an average weight of 12.23 ounces with a standard deviation of 0.89 ounces. Is there strong enough evidence to conclude that the average weight of Sirloin Steaks cut by this machine is different from 12 ounces? use a significance level of 5%.
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