7-15. Consider the following computer output: Test and CI for One Proportion Test of p = 0.4 vs p = 0.4 X N p 98 275 ? (0.299759, 0.412968) 95% CI a) Is this a one-sided or a two-sided test? b) What is the value of the sample proportion? c) Compute the p-value using the binomial distribu- tion. d) Approximate the p-value using the standard nor- mal distribution.

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7-15. Consider the following computer output:
Test and CI for One Proportion
Test of p = 0.4 vs p = 0.4
X
N p
98
275 ? (0.299759, 0.412968)
95% CI
a) Is this a one-sided or a two-sided test?
b) What is the value of the sample proportion?
c) Compute the p-value using the binomial distribu-
tion.
d) Approximate the p-value using the standard nor-
mal distribution.
Transcribed Image Text:7-15. Consider the following computer output: Test and CI for One Proportion Test of p = 0.4 vs p = 0.4 X N p 98 275 ? (0.299759, 0.412968) 95% CI a) Is this a one-sided or a two-sided test? b) What is the value of the sample proportion? c) Compute the p-value using the binomial distribu- tion. d) Approximate the p-value using the standard nor- mal distribution.
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