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Express the confidence interval [tex](0.007, 0.101)[/tex] in the form of [tex]\hat{p} - E \ \textless \ p \ \textless \ \hat{p} + E[/tex].

[tex]\square \ \textless \ p \ \textless \ \square[/tex] (Type integers or decimals.)


Sagot :

To express the confidence interval [tex]\((0.007, 0.101)\)[/tex] in the form of [tex]\(\hat{p} - E < p < \hat{p} + E\)[/tex], we need to find the midpoint [tex]\(\hat{p}\)[/tex] and the margin of error [tex]\(E\)[/tex].

1. Midpoint ([tex]\(\hat{p}\)[/tex]) Calculation:
[tex]\[ \hat{p} = \frac{\text{lower bound} + \text{upper bound}}{2} \][/tex]
Given the lower bound is [tex]\(0.007\)[/tex] and the upper bound is [tex]\(0.101\)[/tex]:
[tex]\[ \hat{p} = \frac{0.007 + 0.101}{2} = 0.054 \][/tex]

2. Margin of Error ([tex]\(E\)[/tex]) Calculation:
[tex]\[ E = \frac{\text{upper bound} - \text{lower bound}}{2} \][/tex]
Given the lower bound is [tex]\(0.007\)[/tex] and the upper bound is [tex]\(0.101\)[/tex]:
[tex]\[ E = \frac{0.101 - 0.007}{2} = 0.047 \][/tex]

3. Forming the Interval:
Using the values of [tex]\(\hat{p}\)[/tex] and [tex]\(E\)[/tex]:
[tex]\[ \hat{p} - E = 0.054 - 0.047 = 0.007 \][/tex]
[tex]\[ \hat{p} + E = 0.054 + 0.047 = 0.101 \][/tex]

Therefore, the confidence interval [tex]\(0.007 < p < 0.101\)[/tex] can be expressed in the form:
[tex]\[ 0.007 < p < 0.101 \][/tex]

In summary, the given confidence interval [tex]\((0.007, 0.101)\)[/tex] can be neatly expressed as [tex]\(\hat{p} - E < p < \hat{p} + E\)[/tex] with:
[tex]\[ \boxed{0.007} < p < \boxed{0.101} \][/tex]