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timurjin [86]
3 years ago
8

Choose the appropriate test for the following situation. A company has instituted a new work policy that it hopes will reduce th

e number of sick days used per year by its employees. You wish to test whether the mean number of sick days used by employees this year differs from the mean number of sick days used last year by all employees (which was 8.2).
a. Two-sample t-test
b. One-sample t-test
c. Two-sample prop z-test
d. Dependent sample t-test
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

i think it is a

Step-by-step explanation:

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Colton wants to ride his bicycle 53.2 miles this week. He has already ridden 10 miles.
olganol [36]

Answer:

About 7 miles a day?

Step-by-step explanation:

53.2-10= 43.2

43.2 divided by 6 is  about 7.6. I’m just in middle school though :)

6 0
3 years ago
Find the length of one edge of the cube. <br> Edge length = Answer inches
ycow [4]

Volume

V = l³

length (inverse formula)

l = ∛512

l = 8 in (your answer)

5 0
3 years ago
Sung loo worked 54 hours during a special sale at the store. 10 hours was time and a half, and 4 hours were at double time. Her
DanielleElmas [232]

Answer:

$432.18

Step-by-step explanation:

Time and a half = 50% more pay rate / 1.5*6.86 = $10.29 per hour

Double time = 2*6.86 = $13.72 per hour

Rest of the time => At regular rate

Total Amount = 10(10.29) + 4(13.72) + (54 - 10 - 4)(6.86)

                       = 10(10.29) + 4(13.72) + (40)(6.86)

                       = $ 432.18

6 0
3 years ago
Read 2 more answers
Find the arc length of the semicircle. 7the grade
charle [14.2K]

so, is a semi-circle, half a circle, recall a circle has a total of 360°, so half of that will be 180°.

the diameter of that circle is 10, so its radius is half that, or 5.


\bf \textit{arc's length}\\\\ s=\cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ \theta =180\\ r=5 \end{cases}\implies s=\cfrac{(180)(\pi )(5)}{180}\implies s=5\pi \stackrel{\pi =3.14}{\implies s=15.7}

3 0
3 years ago
Helpppp plz??????????????
professor190 [17]

Answer:

6/54 or 1/9

Step-by-step explanation:

6/54 reduces to 1/9

hope this helps

8 0
2 years ago
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