Mathematics, 18.12.2019 17:31, settasav9641
Aprofessor is trying to determine if her students guessed on a certain multiple choice question. she expects that if the students guessed, the distribution of answers would be uniform for that question. she compares the observed distribution of answers with the uniform distribution. the professor conducts a chi-square goodness-of-fit hypothesis test at the 5% significance level.
a) the null and alternative hypotheses are: h0: the student answers have the uniform distribution. ha: the student answers do not have the uniform distribution.
b) χ20=13.167.
c) χ20.05=7.815.
d) what conclusions can be made?
select all that apply:
a. we should reject h0.
b. we should not reject h0.
c. at the 5% significance level, there is sufficient evidence to conclude that the students were not guessing.
d. at the 5% significance level, there is not enough evidence to conclude that the students were not guessing.
Answers: 1
Mathematics, 22.06.2019 02:00, laurachealsy923
Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start
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Mathematics, 22.06.2019 02:30, stressedstudent6402
Chosen according to the volume of oil it can haul, as shown in at a railway yard, locomotives are used to haul containers carrying the table. locomotive capacity a450 0 -750 cubic feet cg35 750-1,500 cubic feet br73 1,500-2,500 cubic feet yh61 2,500-3,500 cubic feet & the four cylindrical containers listed in the table need to be hauled. cylinder length (ft.) diameter (ft.) fill level a 40 , 12 half b 24 8 full c 16 16 full 6 12 full d match each container to the locomotive needed to haulit a450 cylinder a yh61 cylinder d
Answers: 2
Aprofessor is trying to determine if her students guessed on a certain multiple choice question. she...
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