uncarne dirrerent from the mean amount of airborne bacteria in uncarpeted rooms. To test this, carpeted and Carpeted rooms 12.1 Uncarpeted rooms 9.8 Sample mean of bacteria per ft' Sample std. dev. of bacteria per ft' Number of rooms tested 3.2 2.7 20 23 TO .05 to see test if the amount off airborne bacteria is different in carpeted rooms than in uncarpeted rooms. I. State your hypotheses I. State the allowable type I error rate (a) III. Calculate your test statistic, the p-value and draw the physical representation of the p-value IV. Make your decision to either reject the null or fail to reject the null. V. Make a concluding statement.

zions Management Spring21 Time left 1:09:43 In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 4 observations regarding the thickness of fabric in measured in millimeters. In a particular hour, the sample means (X-bar) are noted to be: 156.46, 199.62, 189.31, 102.22, and112.09 respectively. In the same sample, the corresponding ranges are: 11.97, 12.17, 13.94, 11.86, and 11.83 respectively. What are the lower and upper control limits for the R chart? O a. 0,31.17 O b. 0,28.17 O c. 0,29.17 O d. None is correct O e. 0,24.71 O f. 0,30.47. NEXT PAGE a Type here to search

no need to sketch just find the areas in between

1. Review the concept of normal curve. 2. Find the area under the normal curve. 3. Sketch the CURVE and SHADE THE REGION. Write your answer on your answer sheet. 7 Morales i X 1.x = 50 µ= 450=8 Find the area to the right. 2x=109 μ=1160=2.7 Find the area to the left. 3.X=12x2= 16 μ = 10 a = 5 Find the area in between.