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Chapter 11: Q. 49 (page 657)

Do private practice doctors and hospital doctors have the same distribution of working hours? Suppose that a sample of 100 private practice doctors and 150 hospital doctors are selected at random and asked about the number of hours a week they work. The results are shown in Table

df=_______.

Short Answer

Expert verified

df=3

Step by step solution

01

Given information

The given data is

02

Explanation

From the given table

The degree of freedom is calculated using the formula df=number of columns-1.

The number of columns is 4in this case.

df=numberofcolumn-1

localid="1654169143324" =4-1=3

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Most popular questions from this chapter

When looking at energy consumption, we are often interested in detecting trends over time and how they correlate among different countries. The information in Table 11.57 shows the average energy use (in units of kg of oil equivalent per capita) in the USA and the joint European Union countries (EU) for the six-year period 2005 to 2010. DoW? Perform the analysis at the 5% significance level.

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Read the statement and decide whether it is true or false.

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