Question 2

An analytics professional is asked to plan the shipment of a product for the next quarter. She employs the following process.

Step 1:

For each of the 12 distribution centers, she plots the quarterly demand for the product over the last three years.

Step 2:

Based on the plot for each distribution center, she develops a forecasting model to forecast demand for next quarter for each distribution center.

Step 3:

She takes the forecast for next quarter for each distribution center and inputs those forecasts, along with the capacities of the companys four factories and transportation rates from each factory to each distribution center, into an optimization model. The optimization model suggests a shipping plan that minimizes the cost of how to satisfy the forecasted demand from the companys four different factories to the distribution centers.

Describe the type of analytics being utilized in step 1 outlined above.

Descriptive or prescriptive or predctive

Describe the type of analytics being utilized in step 2 outlined above.

Descriptive or prescriptive or predctive

Describe the type of analytics being utilized in step 3 outlined above.

Descriptive or prescriptive or predctive

Question 3

A Wall Street Journal subscriber survey asked a series of questions about subscriber characteristics and interests. State whether each of the following questions provides categorical or quantitative data.

(a) What is your age?

categorical or quantitative

(b) Are you male or female?

categorical or quantitative

(c) When did you first start reading the WSJ? High school, college, early career, midcareer, late career, or retirement?

categorical or quantitative

(d) How long have you been in your present job or position?

categorical or quantitative

(e) What type of vehicle are you considering for your next purchase? Nine response categories include sedan, sports car, SUV, minivan, and so on.

categorical or quantitative

Question 4

Consumer Reports provides product evaluations for its subscribers. The following table shows data from Consumer Reports for four smartwatches on the following characteristics.

Overall Scorea score awarded for a variety of performance factors

Pricethe retail price

Recommendeddoes Consumer Reports recommend purchasing the smartwatch based on performance and strengths?

Best Buyif Consumer Reports recommends purchasing the smartwatch, does it also consider it a "best buy" based on a blend of performance and value?

Make	Overall Score	Recommended	Best Buy	Price
Apple Watch Series 5	84	Yes	No	$395
Fitbit Versa 2	78	Yes	Yes	$200
Garmin Venu	77	Yes	No	$350
Fitbit Versa Lite	65	No	No	$100

For each of the four pieces of data, indicate whether the data are quantitative or categorical and whether the data are cross-sectional or time series.

Overall Score is and

quantitative or categorical and whether the data are cross-sectional or time series.

Recommended is and

quantitative or categorical and whether the data are cross-sectional or time series.

Best Buy is and

quantitative or categorical and whether the data are cross-sectional or time series.

Price is and .

quantitative or categorical and whether the data are cross-sectional or time series.

Question 5

Suppose we want to better understand the relationship between house price and square footage of the house, and we have collected house price and square footage for 75 houses in a particular neighborhood of Cincinnati, Ohio, from the Zillow website on January 3, 2021.

(a) Are these data quantitative or categorical?

data quantitative or categorical?

(b) Are these data cross-sectional or time series?

cross-sectional or time series?

(c) Which of the following types of charts would provide the best display of these data? Explain your answer.

1.bar chart

2.column chart

3.scatter chart

Bar charts and column charts are better for data.

data quantitative or categorical?

Here we have for each of 75 houses.

pairs of categorical data or pairs of numerical data

Therefore, a would be appropriate.

bar chart or column chart or scatter chart

Question 6

The following chart displays the total number of Netflix subscribers from 2010 to 2019.

Netflix Subscribers (millions) A chart has a horizontal axis labeled "Year" with values from 2010 to 2019. The chart has 10 vertical bars of varying heights. Each bar is associated with a value on the horizontal axis and a labeled height as follows.

2010: 20.0

2011: 26.3

2012: 33.3

2013: 44.4

2014: 57.4

2015: 74.8

2016: 89.1

2017: 110.6

2018: 139.3

2019: 167.1

(a) Are these data quantitative or categorical?

data quantitative or categorical?

(b) Are these data cross-sectional or time series?

data cross-sectional or time series?

(c) What type of chart is this?

bar chart or spaghetti chart or shot chart or scatter chart or columm chart