Use the chi-square test to determine iIf the listed occupations and personality preferences are independent at the 0.01 level of significance. (a) What is the level of significance? State the nul and alternate hypotheses. O Ha: Myers-Briggs preference and profession are nat independent. Hạ: Myers-Briggs preference and profession are not independent. O Ha: Myers-Briggs preference and profession are independent. Hạ: Myers-Briggs preference and profession are independent. O Hạ: Myers-Briggs preference and profession are independent. Hạ: Myers-Briggs preference and profession are not independent. O Ha: Myers-Briggs preference and profession are not independent. Hạ: Myers-Briggs preference and profession are independent. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 5? O Yes O No What sampling distribution will you use? O Student's t O normal O uniform O binomial O chi-square What are the degrees of freedom? (c) Find or estimate the Avalue of the sample test statistic. O p-value > 0.100 O 0.050 < p-value <0.100 O D.025 < p-value < D.050 O 0.010 < p-value < 0.025 O 0.005 < p-value < 0.010 O p-value < 0.005
Use the chi-square test to determine iIf the listed occupations and personality preferences are independent at the 0.01 level of significance. (a) What is the level of significance? State the nul and alternate hypotheses. O Ha: Myers-Briggs preference and profession are nat independent. Hạ: Myers-Briggs preference and profession are not independent. O Ha: Myers-Briggs preference and profession are independent. Hạ: Myers-Briggs preference and profession are independent. O Hạ: Myers-Briggs preference and profession are independent. Hạ: Myers-Briggs preference and profession are not independent. O Ha: Myers-Briggs preference and profession are not independent. Hạ: Myers-Briggs preference and profession are independent. (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 5? O Yes O No What sampling distribution will you use? O Student's t O normal O uniform O binomial O chi-square What are the degrees of freedom? (c) Find or estimate the Avalue of the sample test statistic. O p-value > 0.100 O 0.050 < p-value <0.100 O D.025 < p-value < D.050 O 0.010 < p-value < 0.025 O 0.005 < p-value < 0.010 O p-value < 0.005
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:The following table shows the Myers-Briggs personality preferences for a random sample of 519 people in the listed professions. T refers to thinking and F refers to feeling.
Personality Type
Occupation
Clergy (all denominations)
F
Row Total
55
93
148
M.D.
Lawyer
Column Total
72
87
159
124
88
212
251
268
519
Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.01 level of significance.
(a) What is the level of significance?
State the nul and alternate hypotheses.
O Hg: Myers-Briggs preference and profession are not independent.
H: Myers-Briggs preference and profession are not independent.
O Hg: Myers-Briggs preference and profession are independent.
H: Myers-Briggs preference and profession are independent.
O Hg: Myers-Briggs preference and profession are independent.
H: Myers-Briggs preference and profession are not independent.
O Ha: Myers-Briggs preference and profession are not independent.
Hz: Myers-Briggs preference and profession are independent.
(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.)
Are all the expected frequencies greater than 57
O Yes
O No
What sampling distribution will you use?
O student's t
O normal
O uniform
O binomial
O chi-square
What are the degrees of freedom?
(c) Find or estimate the Pvalue of the sample test statistic.
O p-value > 0.100
O 0.050 < p-value <D.100
O D.025 < p-value < D.050
O D.010 < p-value < D.025
O 0.005 < p-value < D.010
O p-value < 0.005
(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis of independence?
O Since the P-value > a, we fall to reject the null hypothesis.
O Since the P-value > a, we reject the null hypothesis.
O Since the P-value sa, we reject the null hypothesis.
O Since the P-value sa, we fall to reject the null hypothesis.
(e) Interpret your condlusion in the context of the application.
O At the 1% level of significance, there is insufficient evidence to conclude that Myers-Briggs preference and the profession are not independent.
O At the 1% level of significance, there is sufficient evidence to condude that Myers-Briggs preference and the profession are not independent.
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