Use the Following Data Set to Answer Questions 86-100 -Consider the Data on Inventory of Widgets Over a 10-Day

question 65

Multiple Choice

Use the following data set to answer questions 86-100. $$\begin{array}{l}\text { Inventory of Widgets Dver a 10-Day Period }\\\begin{array} { | l | l | l | l | l | l | l | } \hline \text { Day } & \begin{array} { l } \text { Supply } \\\text { Received }\end{array} & \begin{array} { l } \text { Beginning } \\\text { lnventory }\end{array} & \text { Demand } & \begin{array} { l } \text { Ending } \\\text { Inventory }\end{array} & \begin{array} { l } \text { Order } \\\text { Placed }\end{array} & \begin{array} { l } \text { Lead } \\\text { Time }\end{array} \\\hline 1 & & 30 & 8 & 22 & \text { NO } & \\\hline 2 & & 22 & 5 & 17 & \text { NO } & \\\hline 3 & & 17 & 6 & 11 & \text { YES } & 1 \\\hline 4 & & 11 & 8 & 3 & \text { NO } & \\\hline 5 & 20 & 23 & 7 & 16 & \text { NO } & \\\hline 6 & & 16 & 7 & 9 & \text { YES } & 1 \\\hline 7 & & 9 & 6 & 3 & \text { YES } & \\\hline 8 & 20 & 23 & 6 & 17 & \text { NO } & \\\hline 9 & & 17 & 5 & 12 & \text { YES } & 1 \\\hline 10 & & 12 & 7 & 5 & \text { NO } & \\\hline\end{array}\end{array}$$
-Consider the data on Inventory of Widgets Over a 10-Day Period.Any time that ending inventory falls to 15 or below,an order is placed for 20 units of the product.The lead time for delivery varies and is shown in the column under Lead Time.If the ordering costs are $15 per order,what are the total ordering costs during the 10-day period?

• A)$115
• B)$575
• C)$45
• D)$230

Distinguish between correlation and causation and the limitations of correlation coefficients in implying causality.

Understand the concept of covariance and its illustrative examples.

Identify and formulate null hypotheses in statistical hypothesis testing.

Understand and interpret Pearson correlation values and their implications.

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