After a collapse of the stock market, a business newspaper polled its readers and asked whether they expected another big drop in the mar months. A contingency table of the responses is available below. (a) Quantify the amount of association between the respondents' stock ownership and expectation about the chance for another big drop in (b) Reduce the table by combining the counts of very likely and somewhat likely and the counts of not very likely and not likely at all, so that the table has three rows: likely, not likely, and unsure. Compare the amount of association in original table. Click the icon to view the contingency table. (a) Compute the chi-squared statistic for the table. Contingency Table (Round to one decimal place as needed.) Owns Stock? Yes Likelihood of Big Drop Very likely Somewhat likely Not very likely Not likely at all No 25 21 38 68 51 68 20 33 Unsure 10 11

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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After a collapse of the stock market, a business newspaper polled its readers and asked whether they expected another big drop in the market during the next 12
months. A contingency table of the responses is available below.
(a) Quantify the amount of association between the respondents' stock ownership and expectation about the chance for another big drop in stock prices.
(b) Reduce the table by combining the counts of very likely and somewhat likely and the counts
of not very likely and not likely at all, so that the table has three rows: likely, not likely, and unsure. Compare the amount of association in this table to that in the
original table.
E Click the icon to view the contingency table.
(a) Compute the chi-squared statistic for the table.
Contingency Table
(Round to one decimal place as needed.)
Owns Stock?
Likelihood of Big Drop
Very likely
Somewhat likely
Not very likely
Not likely at all
Yes
No
Total
25
21
46
38
68
106
51
68
119
20
33
53
Unsure
10
11
21
Total
144
201
345
Print
Done
Transcribed Image Text:After a collapse of the stock market, a business newspaper polled its readers and asked whether they expected another big drop in the market during the next 12 months. A contingency table of the responses is available below. (a) Quantify the amount of association between the respondents' stock ownership and expectation about the chance for another big drop in stock prices. (b) Reduce the table by combining the counts of very likely and somewhat likely and the counts of not very likely and not likely at all, so that the table has three rows: likely, not likely, and unsure. Compare the amount of association in this table to that in the original table. E Click the icon to view the contingency table. (a) Compute the chi-squared statistic for the table. Contingency Table (Round to one decimal place as needed.) Owns Stock? Likelihood of Big Drop Very likely Somewhat likely Not very likely Not likely at all Yes No Total 25 21 46 38 68 106 51 68 119 20 33 53 Unsure 10 11 21 Total 144 201 345 Print Done
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