If vendor lead time is 4 days and the number of days between reviews is 6. Which of the following is the standard deviation of demand over the review and lead time if the standard deviation of daily demand is 10? Use fixed-time period model. Group of answer choices 31.62 7.07 20 24.49 12.25

55. A small company records the number of online orders it receives each day for a week (Monday to Sunday). The numbers of orders are as ps: follows: 10, 12, 15, 8, 20, 15, and 18. What is the standard deviation of the number of orders? A. 5.87 B. 4.67 C. 4.28 D. 1.36

A stock has had returns of 14%, 27%, 18%, and 5% for the past four years. Calculate the standard deviation of the returns.Group of answer choices9.1%8.2%8.8%6.4%

Question 1: Lead Time Demand and Safety Stock 4 points If demand for an item is normally distributed and the lead time is 2 days, then we plan for demand during the lead time to be twice the average daily demand and carry 2 standard deviations worth of safety stock inventory. Please answer 'True' or 'False'.  Locally stored answer:  Question 2: P-Model vs Q-Model 4 points The fixed-time period inventory system has a smaller average inventory than the fixed-order quantity system because it must also protect against stockouts during the review period when inventory is checked. Please answer 'True' or 'False'.  Locally stored answer:  Question 3: Mean Lead Time Demand 8 points A company has recorded the last five days of daily demand on their only product. Those values are 148, 125, 125, 123, and 136. The time from when an order is placed to when it arrives at the company from its vendor is 2 days. Assuming the basic fixed-order quantity inventory model fits this situation and no safety stock is needed, what is the reorder point (ROP)?  Locally stored answer:  Question 4: Order Quantity in P-Model 4 points Which of the following is not required to compute the order quantity using the fixed-time period model with safety stock? * A) Forecast of average daily demand. * B) Safety stock. * C) Inventory currently on hand. * D) Ordering cost. * E) Lead time in days.

For the data set 6, 5, 10, 11, 13, the mean, x, is 9. What is the standard deviation?The formula for the sample standard deviation is 𝑠=1𝑛−1Σ(𝑥−𝑥ˉ)2s= n−11​ Σ(x− xˉ ) 2 ​ .Use the table to help you.Round your answer to the nearest tenth.

Suppose Blue Cab Company charges $2.85 a ride up to 0.1 miles and $0.30 for each additional tenth of a mile. If the mean distance a passenger wants to go is 5.3 miles with a standard deviation of 1.4 miles, what is the standard deviation of the fare passengers pay? $0.42 $4.20 $9.00