So in this question, we are given sample salaries in thousands of dollars for employees, and in part, they were asked to find the sample mean and the sample standard deviation. So for the sample mean we basically take the some effects divided by the number of elements. Sample standard deviation. We take the summer off squares, we divide by and minus one and take the square root. So if we take all of the's values here, our sample mean yes, 41.5385 So Mm hmm. 0.5 green 85 the unit ISS thousands off dollars and our sample standard deviation. So we basically take each value. We subtract the mean from it, we square it and then we summit and then we divide by the number of elements. So the sample standard deviation is 5.3169 same unit off thousands off dollars. So this is our answer to part. So now, in part B were asked to, we're told that each employee receives a 5% race and were asked to find the sample mean and standard deviation. So with the 5% race for us to find the sample mean and standard TV should. So for 5% rates were basically going to take each of these values, and we're going to multiply that by 1.5 and then we're going to use our sample mean and standard deviation formulas and calculate the values. So when we multiply everything by 1.5, for example, 42 come 44.1 and just another example 45 will become 47.25 So we do that for all the values and here, our sample mean is going to be 43.615 thousands off dollars and our sample standard deviation using this formula is going to be 5.583 thousands of dollars. So that's our answer to part. Think now in Part C were asked to take the salaries and divided by 12 to get the monthly salary, whereas to find the mean and standard deviation for the salaries. So, for example, if we take 42 and we divide by 12, we get 3.5. So we're going to do the same thing for all our values here, and after doing that, we will calculate again the same using same formula. The sample mean and simple center, activations or sample. Mean here is 3.46 15 So 3.4615 thousands off dollars and our sample standard deviation is point 0.44 mhm in the unit ears again, thousands off dollars. So we have our answer for part C Now in party, what we're asked is what we can conclude from the results off A, B and C. So basically what we can conclude from our results is when there was a 5% raise in salaries, there was also actually a 5% raise in the mean and standard deviation. So 5% brace in the data for salaries also caused it 5% increase in the sample mean and the sample standard deviation and mean the same thing when the salaries were divided by 12. Then the sample standard deviation and the mean we're also divided by 12, which we can actually see here. So and we actually take our original samples mean and center division, and we divide by 12. We actually get thes values, and so that is our conclusion for parties. Whatever change in the day. If all of the data changes consistently in a particular manner, so does the sample mean and standard division. They basically changed by that same consistent amount.