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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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Estimate the area of a circle with a radius of 3.1 feet
Aliun [14]

Answer:

Step-by-step explanation:

Area of a circle = pi x square of radius = 30.190 ft

5 0
3 years ago
Hey can someone please help me with this question thanks!
-BARSIC- [3]
The dependent variable is the number of votes
6 0
3 years ago
3a² + 11a – 42<br><br>this is factoring in algebra 2 (high school) <br>​
N76 [4]

To factor,

<h2>[[[</h2>

1) First multiply coefficient of a² and constant no,

That is,

3×(-42)=-126

Since the<u> resultant no is negative</u>, you should find two such factors of 126 <u>which</u> <u>will give us the coefficient of a (=11)</u> on subracting those factors.

2) Find the factor

126=2×3×3×7

=18×7

18 and 17 are factors of 126

Also,18-7 =11.

So they are required factors for factoring,

<h2>]]]</h2>

Once you have understood above steps you can solve on your own. All you need to do is split 11 into factors ,take common terms and you will get answer.

<u>Answer:</u>

3a²+11a-42

=3a²+(18-7)a -42

=3a²+18a-7a-42

=3a(a+6) -7(a+6)

=(a+6)(3a-7)

3 0
3 years ago
The edges of each tissue box measure 6.5 inches the dimensions of the shipping container are 19.5 inches by 39 inches by 19.5 in
alexdok [17]
The number of tissues that can fit the container will  be given by:
[volume of the container]/[volume of tissue box]
volume of container:
V=length×width×height
V=19.5×39×19.5
V=14829.75

Volume of tissue box:
v=6.5×6.5×6.5
v=274.625

Number of tissues in the container:
14829.75/274.625
=54

Answer: 54 tissue paper boxes
3 0
3 years ago
Dianne pays $28 to enter a state fair, plus $2 for each ride. Which of the following equations represents her total cost?
Kisachek [45]
Ok so Dianne pays $28 to get into the fair, she pays $2 for each ride she ride's so I think the equation would be 28+2x= the amount of money she paid 
4 0
3 years ago
Read 2 more answers
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