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Chapter 2: Q.21 (page 131)

Construct a times series graph for

(a) the number of male births,

(b) the number of female births, and

(c) the total number of births.

Short Answer

Expert verified

The output for the time series graph for the

a. number of male births,

b. number of female births and

c. total number of birth is

Step by step solution

01

Content Introduction

Considering the data below:

The time series graph is made in excel as follow:

  1. Select the given data and go to Insert in the menu bar.
  2. select "Insert line Chart" from the heading "Charts".
  3. Select 2-D line charts.
  4. Click on displayed chart and on the right hand side of the chart, a plus sign can be seen.
  5. Click on it and select chart elements written As Axis title, data label, Chart type, Legend, Label, as shown in the time series below.
02

Content Explanation

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Most popular questions from this chapter

Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976鈥�1977 through 2004鈥�2005.

鈥� 渭 = 1000 FTES

鈥� median = 1,014 FTES

鈥� 蟽 = 474 FTES

鈥� first quartile = 528.5 FTES

鈥� third quartile = 1,447.5 FTES

鈥� n = 29 years

75% of all years have an FTES:

a. at or below: _____

b. at or above: _____

The following data show the distances (in miles) from the homes of off-campus statistics students to the college. Create a stem plot using the data and identify any outliers:

0.5;0.7;1.1;1.2;1.2;1.3;1.3;1.5;1.5;1.7;1.7;1.8;1.9;2.0;2.2;2.5;2.6;2.8;2.8;2.8;3.5;3.8;4.4;4.8;4.9;5.2;5.5;5.7;5.8;8.0

Javier and Ercilia are supervisors at a shopping mall. Each was given the task of estimating the mean distance that shoppers live from the mall. They each randomly surveyed 100shoppers. The samples yielded the following information.

a. How can you determine which survey was correct ?

b. Explain what the difference in the results of the surveys implies about the data.

c. If the two histograms depict the distribution of values for each supervisor, which one depicts Ercilia's sample? How do you know?

d. If the two box plots depict the distribution of values for each supervisor, which one depicts Ercilia鈥檚 sample? How do you know?

Use the following information to answer the next three exercises: We are interested in the number of years students in a particular elementary statistics class have lived in California. The information in the following table is from the entire section.

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.

1;1;1;2;2;2;2;3;3;3;3;3;3;3;3;4;4;4;5;5

Use the following information to answer the next nine exercises: The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976鈥�1977 through 2004鈥�2005.

鈥� 渭 = 1000 FTES

鈥� median = 1,014 FTES

鈥� 蟽 = 474 FTES

鈥� first quartile = 528.5 FTES

鈥� third quartile = 1,447.5 FTES

鈥� n = 29 years

Compare the IQR for the FTES for 1976鈥�77 through 2004鈥�2005 with the IQR for the FTES for 2005-2006 through 2010鈥�2011. Why do you suppose the IQRs are so different?
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