A survey by the American Veterinary Medical Association found that out of 120 families surveyed, 18 owned a bird. Fifteen years ago, a similar study found that only 5 families out of 100 surveyed had a bird. Are the validity conditions for a two-sample z-test/interval adequately met
1 answer:
Answer:
Step-by-step explanation:
The assumptions include:
The samples from each population must be independent of one another: this was adequately met.
The populations from which the samples are taken must be normally distributed: this was not talked about
The population standard deviations must be known: not known
or the sample sizes must be large (i.e. n1≥30 and n2≥30: true
The validity conditions for a two-sample z-test/interval were not all adequately met
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Answer/explanation :
Step-by-step
subtract 15-8 you have 7 then take
10- ur answer is 7
10-7= 3
Answer:
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Answer:
1) 0.5
2)-2
3)-23
Step-by-step explanation:
1) -3×1=-3
-3+2.5= 0.5
2) -3×1.5=-4.5
-4.5+2.5= -2
3) -3×8.5=-25.5
-25.5+2.5=-23
Answer:
The choose B. 4√3
I hope I helped you ^ _ ^
Answer:
p = -1/2
Step-by-step explanation:
(6 × p) + 3
= 6p + 3
6p = -3
p = -3/6
p = -1/2
