Question 6.PR.7: A survey of 100 firms found the following evidence regarding...
A survey of 100 firms found the following evidence regarding profitability and market share:
Profitability | Market share | ||
<15% | 15–30% | >30% | |
Low | 18 | 7 | 8 |
Medium | 13 | 11 | 8 |
High | 8 | 12 | 15 |
Is there evidence that market share and profitability are associated?
The blue check mark means that this solution has been answered and checked by an expert. This guarantees that the final answer is accurate.
Learn more on how we answer questions.
Learn more on how we answer questions.
\chi^2(4) = 8.12 which is not significant at the 5% significance level. There appears to be no relationship between size and profitability.
Related Answered Questions
Question: 6.1
Verified Answer:
Since we are using the 95% confidence level the cr...
Question: 6.PR.3
Verified Answer:
\chi^{2}=3.28<3.84, the 95% crit...
Question: 6.PR.9
Verified Answer:
(a) The correct observed and expected values are
...
Question: 6.PR.5
Verified Answer:
Using the data as presented, with expected values ...
Question: 6.PR.1
Verified Answer:
The 95% c.i. for the variance is \frac{39\t...
Question: 6.EX.6
Verified Answer:
The answer is summarised in this Excel table:
...
Question: 6.EX.5
Verified Answer:
The two variances are s^{2}_{A}=0.031[/late...
Question: 6.EX.4
Verified Answer:
The expected values are:
Higher education
A l...
Question: 6.EX.3
Verified Answer:
The test statistics are for (16, 55, 29) \c...
Question: 6.EX.2
Verified Answer:
The calculation of the test statistic is
Outco...