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amelvin41
06.12.2019 •
Mathematics
Aconfidence interval is constructed for an unknown population proportion, p. a sample is collected, and the 95% confidence interval is calculated to be 0.41 ± 0.05. based on this information, it is most accurate to say that there is approximately 95% confidence in the assertion that:
a. the population proportion is between 0.36 and 0.46
b. the sample proportion is between 0.36 and 0.46
c. the sample proportion is 0.41
d.the population proportion is 0.41
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Ответ:
a. the population proportion is between 0.36 and 0.46 .
Step-by-step explanation:
Interpretation of 95% confidence interval : A person can be 95% confident that the true population parameter lies in 95% confidence interval.
Given : A 95% confidence interval for an unknown population proportion, p is calculated to be 0.41 ± 0.05.
i.e. Lower limit = 0.41-0.05 = 0.36
Upper limit = 0.41+0.05 = 0.46
Population parameter = p
Interpretation : A person can be 95% confident that the true population parameter lies between 0.36 and 0.46.
i.e. It is most accurate to say that there is approximately 95% confidence in the assertion that: the population proportion is between 0.36 and 0.46.
Ответ:
10. 4-9x=-14 subtract 4 from both sides
-9x=-18 divide -9 by both sides
x=2
11. 11-x=29 subtract 11 from both sides
-x=18 divide by -1
x=-18
12. -9-11x=68 add 9 to both sides
-11x= 77 divide -11 from both sides
13 45+5/6x=50 subtract 45 from both sides
5/6x =5 multiply 6 by both sides
5x=30 divide by 5 from both sides
x=6
14 -5x+17=-33 subtract 17 from both sides
-5x=-50 divide by -5
x=10
15. 95=-4+33x add 4 to both sides
99=33x divide 33 by both sides
x=3
Hope this helped