Mathematics, 28.11.2019 01:31, aminak185
If you pay more in tuition to go to a top business school, will it necessarily result in a higher probability of a job offer at graduation? let yequalspercentage of graduates with job offers and xequalstuition cost; then fit the simple linear model, upper e (y )equals beta 0 plus beta 1 x, to the data below. is there sufficient evidence (at alphaequals0.10) of a positive linear relationship between y and x? school annual tuition ($) % with job offer 1 39 comma 696 97 2 39 comma 282 84 3 39 comma 043 87 4 38 comma 905 99 5 38 comma 855 85 6 38 comma 005 87 7 37 comma 461 95 8 37 comma 413 93 9 37 comma 293 81 10 37 comma 226 88 give the null and alternative hypotheses for testing whether there exists a positive linear relationship between y and x?
a. upper h 0: beta 0equals0 upper h subscript a: beta 0not equals0
b. upper h 0: beta 1equals0 upper h subscript a: beta 1not equals0
c. upper h 0: beta 0equals0 upper h subscript a: beta 0less than0
d. upper h 0: beta 0equals0 upper h subscript a: beta 0greater than0
e. upper h 0: beta 1equals0 upper h subscript a: beta 1greater than0 your answer is correct.
f. upper h 0: beta 1equals0 upper h subscript a: beta 1less than0 find the test statistic. tequals nothing (round to two decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 18:30, leobaut6145
Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.
Answers: 1
If you pay more in tuition to go to a top business school, will it necessarily result in a higher pr...
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