The formula for the area of a trapezoid is A = one-half (b Subscript 1 Baseline + b Subscript 2 Baseline) times h When this equa
tion is solved for b Subscript 1, one equation is b Subscript 1 Baseline= StartFraction 2 A Over h EndFraction minus b Subscript 2. Which of the following is an equivalent equation to find b Subscript 1?
b Subscript 1 Baseline= StartFraction 2 A minus b Subscript 2 Baseline h Over h EndFraction
b Subscript 1 Baseline = 2 A minus b Subscript 2 Baseline h
b Subscript 1 Baseline= StartFraction h Over 2 A minus b Subscript 2 Baseline h EndFraction
b Subscript 1 Baseline = h (2 A minus b Subscript 2 Baseline h)
b Subscript 1 Baseline= StartFraction 2 A minus b Subscript 2 Baseline h Over h EndFraction
b Subscript 1 Baseline = 2 A minus b Subscript 2 Baseline h
b Subscript 1 Baseline= StartFraction h Over 2 A minus b Subscript 2 Baseline h EndFraction
b Subscript 1 Baseline = h (2 A minus b Subscript 2 Baseline h)
1 answer:
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Answer:
The <em>t</em>-value used for the 95% confidence interval of paired data is 2.776.
Step-by-step explanation:
The confidence interval formula for mean difference for a paired data is as follows:
Here,
= sample mean of the difference,
= sample standard deviation of the difference,
<em>n </em>= sample size (both samples are of same size).
= critical value of <em>t</em>
(<em>n</em> - 1) = degrees of freedom
The information provided is:
<em>n</em> = 5
Confidence level = 95%
The critical value of <em>t</em> is:
*Use a <em>t</em>-table for the critical value of <em>t</em>.
Thus, the <em>t</em>-value used for the 95% confidence interval of paired data is 2.776.
