Answer:
The indicated confidence interval for the difference between the two population means is (-1.5159, 7.5159)
Step-by-step explanation:
Let the drying times of type A be the first population and the drying times of type B be the second population. Then
We have small sample sizes
and
, besides
,
,
and
. Therefore, the pooled
estimate is given by

The 99% confidence interval for the true mean difference between the mean drying time of type A and the mean drying time of type B is given by
, i.e.,

where
is the 0.5th quantile of the t distribution with (11+9-2) = 18 degrees of freedom. So
, i.e.,
the indicated confidence interval for the difference between the two population means is (-1.5159, 7.5159)
Answer:

Step-by-step explanation:
Given
×
+
×
( perform multiplication before addition )
=
+ 
=
( divide numerator/ denominator by 5 to simplify )
= 
From the given above, the point that still needs to be incurred by the group is calculated by subtracting 424 points from 1000. This as shown below,
n = 1000 - 424 = 576
If we are to determine the number of points each game, we divide 576 by 9. That is,
x = 576 / 9 = 64
<em>ANSWER: 64 points/ game</em>
ANSWER:
idek
explanation:
still don’t know...
The total area available for cars to park will be 858m².
<h3>How to calculate the area?</h3>
The area of the parking lot will be:
= 78 × 19
= 1482m²
The area of aisle will be:
= 8 × 78
= 624m²
The available area will be:
= 1482m² - 624m²
= 858m².
The compact parking spaces that will fit in the lot will be:
N × 12.5 = 858
N = 858/12.5
N = 68
The non compact parking spaces that will fit in the lot will be:
N × 16.5 = 858
N = 858/16.5
N = 52
Learn more about area on:
brainly.com/question/7438648
#SPJ1