Roxy purchased a block of wood for a craft. The block of wood is 5 inches, or about 127 millimeters, in length. What is the appr
1 answer:
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Answer:
Step-by-step explanation:
Cancel out 6 in both numerator and denominator.
Rationalize the denominator of
by multiplying the numerator and denominator by
.
The square of is 2
Factor 14=2 × 7. Rewrite the square root of the product as the product of square roots
.
Multiply and
to get 2.
Cancel out 2 and 2.
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Answer:
The critical value is T = 3.143.
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 7 - 1 = 6
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of . So we have T = 3.143.
The critical value is T = 3.143.