Answer:
The sample size required is 2500.
Step-by-step explanation:
z-score:
In function of the margin of error M, the z-score is given by:
In this question, we have that:
So
The sample size required is 2500.
Answer: 405 students
Step-by-step explanation:
From the question, Banneker Middle School has 750 students and we are told that Lynn surveys a random sample of 50 students and finds that 27 have pet dogs. The number of students at the school that are likely to have pet dogs goes thus:
Since out of 50 students surveyed, 27 have pet dogs, this means we multiply the fraction by 750. This can be mathematically written as:
= 27/50 × 750
= 27 × 15
= 405
This means 405 students are expecting to have pet dogs.
Answer:
See Below.
Step-by-step explanation:
<u>Statements</u> <u>Reasons: </u>
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Given
Given
Vertical Angles are Congruent
AAS Congruence
CPCTC
<span>For an independent-measures anova comparing four treatment conditions, dfbetween = 3.
TRUE.
The dfbetween is given by the number of treatments minus 1.
</span>
Answer:
X+y=180, Y=Z, X+Z=180
Step-by-step explanation:
Hope this helps. i remember doing this.
