s) Are teacher salaries in ABC Academy, lower than those in XYZ Academy? Salary data provided shows teachers in Academy earn less than those in XYZ Academy. Suppose that in a follow-up study of 50 teachers in ABC Academy a 55 teachers in XYZ Acadmey, you obtain the following result. In addition, based on past studies, a standard deviati o; for both schools were obtained. АВС XYZ x = 188300 X2 = 178900 %3D 0, = 19600 02 = 16250 Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that given a 90% confidence, that salaries for teachers in ABC Academy are significantly greater than those in XYZ Academy.
s) Are teacher salaries in ABC Academy, lower than those in XYZ Academy? Salary data provided shows teachers in Academy earn less than those in XYZ Academy. Suppose that in a follow-up study of 50 teachers in ABC Academy a 55 teachers in XYZ Acadmey, you obtain the following result. In addition, based on past studies, a standard deviati o; for both schools were obtained. АВС XYZ x = 188300 X2 = 178900 %3D 0, = 19600 02 = 16250 Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that given a 90% confidence, that salaries for teachers in ABC Academy are significantly greater than those in XYZ Academy.
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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Transcribed Image Text:s) Are teacher salaries in ABC Academy, lower than those in XYZ Academy? Salary data provided shows teachers in A
Academy earn less than those in XYZ Academy. Suppose that in a follow-up study of 50 teachers in ABC Academy an
55 teachers in XYZ Acadmey, you obtain the following result. In addition, based on past studies, a standard deviation
ơ; for both schools were obtained.
АВС
XYZ
x = 188300
X2 = 178900
0 = 19600
02 = 16250
Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that given a 90% confidence, that
salaries for teachers in ABC Academy are significantly greater than those in XYZ Academy.
Transcribed Image Text:Note/Hint: within 1 unit from is also same as saying 1 unit of – this means 1 unit above and 1 unit below.
For the z-values – use the set of z-values for the 90%, 95% and 99% confidence level, all else use that
For Hypothesis testing, always show the 5 steps.
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