ademy.org/profile/kaid 123667084355651599004012/assignments/teacher/kaid 570905347429149155795 Q Search .... Search Khan Academy Donate Mean and standard deviation of sample proportions Suppose that 35% of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 30 students from the population of 750 students at the school and finds that 40% of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this. PRO Let p represent the proportion of a sample of 30 students in the school who can sing their national anthem Ass correctly. What are the mean and standard deviation of the sampling distribution of p? MY Choose 1 answer: Co Hp = (30)(0.4) !! SA Og = V 30(0.4)(1 – 0.4) MY Pro Hg = 0.4 Pro 0.4 (1 0.4) 30 Tea Hp = (30)(0.35) %3D Op = V 30(0.35)(1 – 0.35) Hp = 0.35 3 of 4 • .O0 Check r mission is to provide a free world-class About Math: Pre-K - 8th grade
ademy.org/profile/kaid 123667084355651599004012/assignments/teacher/kaid 570905347429149155795 Q Search .... Search Khan Academy Donate Mean and standard deviation of sample proportions Suppose that 35% of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 30 students from the population of 750 students at the school and finds that 40% of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this. PRO Let p represent the proportion of a sample of 30 students in the school who can sing their national anthem Ass correctly. What are the mean and standard deviation of the sampling distribution of p? MY Choose 1 answer: Co Hp = (30)(0.4) !! SA Og = V 30(0.4)(1 – 0.4) MY Pro Hg = 0.4 Pro 0.4 (1 0.4) 30 Tea Hp = (30)(0.35) %3D Op = V 30(0.35)(1 – 0.35) Hp = 0.35 3 of 4 • .O0 Check r mission is to provide a free world-class About Math: Pre-K - 8th grade
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Transcribed Image Text:What are the mean and standard deviation of the sampling distribution of p?
Choose 1 answer:
Hộ = (30)(0.4)
Op = V30(0.4)(1 – 0.4)
Hp = 0.4
0.4 (1– 0.4)
Op = 1
30
Hp = (30)(0.35)
Op = V 30(0.35)(1 – 0.35)
Hp = 0.35
0.35 (1 0.35)
Op = \
30
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Mean and standard deviation of sample proportions
Suppose that 35% of students in a school can sing their national anthem correctly. The music teacher takes an
SRS of 30 students from the population of 750 students at the school and finds that 40% of students sampled
can sing their national anthem correctly. The teacher plans to take more samples like this.
PRO
Let p represent the proportion of a sample of 30 students in the school who can sing their national anthem
correctly.
Ass
What are the mean and standard deviation of the sampling distribution of p?
MY
Choose 1 answer:
Co
Hp = (30)(0.4)
SA
Of = /30(0.4)(1 – 0.4)
MY
Pro
Hp = 0.4
0.4 (1 0.4)
đp = V
Pro
30
Tea
Hp = (30)(0.35)
Op = V 30(0.35)(1 – 0.35)
Hs = 0.35
3 of 4 .. O0
Check
r mission is to provide a free, world-class
About
Math: Pre-K - 8th grade
Ication to anvone anywhoere
News
Math: Get ready courses
Contact
?XP
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