Do college majors have any effect on starting salaries after graduation? 350 recent graduates were surveyed about their majors in college and their starting salaries after graduation. Table 1 below shows the data. Conduct a test of independence at the 99% level of confidence. Round to 2 decimal places. Observed Frequencies TOTAL Major English Engineering Nursing <50K 50-69K 69K+ 20 10 20 25 65 35 50 95 5 15 25 45 Business 15 25 25 65 Psychology 10 40 30 80 TOTAL ТОTAL 60 135 155 350 a. Write the Ho in your own words: b. Type of test to conduct (write one of "Z-test", "t-test" or "Chi-squared test" in the blank): c. The test-statistic calculated value is:

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Do college majors have any effect on starting salaries after graduation? 350 recent graduates were surveyed about their majors in college and their starting salaries after graduation. Table 1 below shows the data. Conduct a test of independence at
the 99% level of confidence. Round to 2 decimal places.
Observed Frequencies
Major
English
Engineering
Nursing
<50K
50-69K
69K+
ТОTAL
20
20
25
65
10
35
50
95
5
15
25
45
Business
15
25
25
65
Psychology
10
40
30
80
ТОTAL
60
135
155
350
a. Write the Ho in your own words:
b. Type of test to conduct (write one of "Z-test", "t-test" or "Chi-squared test" in the blank):
c. The test-statistic calculated value is:
d. The critical value is:
e. We fail to reject the null hypothesis (Write "true" or "false" in the blank):
Transcribed Image Text:Do college majors have any effect on starting salaries after graduation? 350 recent graduates were surveyed about their majors in college and their starting salaries after graduation. Table 1 below shows the data. Conduct a test of independence at the 99% level of confidence. Round to 2 decimal places. Observed Frequencies Major English Engineering Nursing <50K 50-69K 69K+ ТОTAL 20 20 25 65 10 35 50 95 5 15 25 45 Business 15 25 25 65 Psychology 10 40 30 80 ТОTAL 60 135 155 350 a. Write the Ho in your own words: b. Type of test to conduct (write one of "Z-test", "t-test" or "Chi-squared test" in the blank): c. The test-statistic calculated value is: d. The critical value is: e. We fail to reject the null hypothesis (Write "true" or "false" in the blank):
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