Answer:
ok
Step-by-step explanation:
Answer:
> (greater than)
Step-by-step explanation:
In the case of negatives, the lower number is the greater one since is closer to the right side in the number line.
Therefore, -9.5 > (greater than) - 9.75
This question is incomplete. I got the complete part (the boldened part) of it from google as:
The following 98% confidence interval was obtained for μ1 - μ2, the difference between the mean drying time for paint cans of type A and the mean drying time for paint cans of type B:
4.90 hrs < μ1 - μ2 < 17.50 hrs.
Answer:
A paint manufacturer made a modification to a paint to speed up its drying time. Independent simple random samples of 11 cans of type A (the original paint) and 9 cans of type B (the modified paint) were selected and applied to similar surfaces. The drying times, in hours, were recorded. The summary statistics are as follows. Type A Type B x 1x1equals=76.3 hr x 2x2equals=65.1 hr s 1s1equals=4.5 hr s 2s2equals=5.1 hr n 1n1equals=11 n 2n2equals=9 The following 98% confidence interval was obtained for mu 1μ1minus−mu 2μ2, the difference between the mean drying time for paint cans of type A and the mean drying time for paint cans of type B. What does the confidence interval suggest about the population means?
The mean difference for the 98% confidence interval, the drying times of the two types of paints are (4.90, 17.50). This implies that Type A paint takes between 4.90 and 17.50 hours more to dry than type B paint.
Step-by-step explanation:
The mean difference for the 98% confidence interval, the drying times of the two types of paints are (4.90, 17.50). This implies that Type A paint takes between 4.90 and 17.50 hours more to dry than type B paint.
Only positive values comprise the confidence interval which suggests that the mean drying time for paint type A is greater than the mean drying time for paint type B. The modification appears to be effective in reducing drying times.
The correct matches are as follows:
<span>Line Segment
</span>E) part of a line that has two endpoints<span>
Plane
</span>D) a flat surface that extends infinitely and has no thickness<span>
Perpendicular Lines
</span>B) two lines that intersect at 90° angles<span>
Line
</span>A) a series of points that extend in two directions without end<span>
Parallel Lines
</span>C) lines that lie in the same plane and do not intersect
Hope this answers the question. Have a nice day.
