To study the export activity of manufacturing firms in Korea, questionnaires wer

Question

To study the export activity of manufacturing firms in Korea, questionnaires were mailed to an SRS of firms in each of three industries that export many of their products. The response rate was low, and to compare the industries it is important that the response rates from the different industries be similar. Do the data in the Minitab output shown in the following table provide evidence of a difference in response rate between the four industries?

The output includes the cell counts, the expected cell counts, and the chi-square statistic. Expected counts are printed below observed counts

Responded

Didn't respond

Chi-Sq = 4.754

1.

2.

3.

4.

Responded

Didn't respond

Explanation / Answer

This is an rc table

Where r= number of rows

c=number of columns

Here r= no of rows=3

Answer is 3.

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