Year Returns X Y 116% 22% 2 30 31 3-23-28 4 11 12 5 10 22 Using the returns shown above, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. (Do not round intermediate calculations. Enter your average return and standard deviation answers as a percent rounded to 2 decimal places, e.g., 32.16. Enter your variance answers rounded to 5 decimal places, e.g., 16161.)

Adbir Corporation produces jewelry container for Colmar Jewelry. The company produces their product in their small-scale production plant. The following information relates with standard requirement for each unit of the container. Direct materials Direct labor Variable overhead 2kg @ RM6.00 per kg 5 hours @ RM4.00 per hour 5 hours @ RM3 per hour The production of the product had a budgeted fixed overhead of RM570,000 per annum. Overhead were absorb based on direct labor hours with monthly budgeted production unit of 1,900 units. Actual data for production in March 2021 was recorded as follows: (i) The direct materials recorded and charged to production are 4,900kg at RM6.20 per kg. (ii) Direct labor involved in the production was paid RM4.50 per hour. A total of 9,800 hours was recorded for the job. (iii) Variable overhead incurred was RM29,500 and fixed overhead is RM47,000. (iv) Jewelry container produced are 2,000 units.

Bill's Bookstore is tracking its monthly demand for textbooks and has seen the following demand pattern. Historical forecasts are also included. MONTH FORECASTED DEMAND ACTUAL DEMAND April 150 165 May 220 210 June 215 200 July 245 250 August 205 225 Assess Bill's performance for the forecast in the table above using the Mean Absolute Deviation (MAD). Only use the data for the months of April through August to calculate the MAD.

A buyer for an electrical component is searching for a supplier who has the best combination of low price, low order cycle time and low order cycle variability.Current uage for the component is 100 units per day. the buyer received data on four potineital suppliers (table) Based on the order cycle time, variability and unit price data provided in the table, which supplier should be awarded the component business?

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#14 Control Charts: Yellowstone National Park Yellowstone Park Medical Services provides emergency health care for park visitors. The average number of visitors treated is 21.7 per day during the summer period. The estimated standard deviation is 4.2 visitors. a. For a 10-day summer period, the following data show the number of visitors treated each day. Day 1 2 3 4 5 6 7 8 9 10 # 25 19 17 15 20 24 30 19 16 23 Make a control chart for the daily number of visitors treated and plot the data on the control chart. Does the data indicate that the number visitors treated is "in Control"? b. For another 10-day summer period, the following data saw obtained. Day 1 2 3 4 5 6 7 8 # 20 15 12 21 24 28 32 36 96 35 10 37 17 Make a control chart for the daily number of visitors treated and plot the data on the control chart. Does the data indicate that the number visitors treated is "in Control"?

0 2 A courier company guarantees its customers that the average time to pick up their packages is 20 minutes with a tolerance of ± 4 minutes. The company collected data on 30 actual arrival times and determined that the average is 20 minutes and standard deviation of this sample was 1 minutes. What is the Cpk of this package service process? 01 Less than 1 O Great than 2 1.33

Could you help me with this homework question? I got an answer of 22.9

2. The annual commissions earned by sales representatives of Machine Products Inc., a manufacturer of light machinery, follow the normal probability distribution. The mean yearly amount earned is $40,000 and the standard deviation is $5,000. a. What percent of the sales representatives earn more than $42,000 per year? b. What percent of the sales representatives earn between $32,000 and $42,000? c. What percent of the sales representatives earn between $32,000 and $35,000?

The mean of X = 10 and the standard deviation of X = 2. The variable X is linearly transformed such that Xnew = a + bX. The mean of Xnew = 800 and the variance of Xnew = 100. Suppose b is a negative number. What does a equal? 4. The mean of X = 5 and the variance of X = 4. The variable X is linearly transformed such that Xnew = a + bX. The mean of Xnew = 400 and the standard deviation of Xnew = 6. Suppose b is a negative number. What does a equal? 5.