An occupational safety officer for a large company is conducting a study to investigate back problems in office workers who use a computer for most of the workday. The study will
investigate the difference in back problems for workers who stand and workers who sit. A group of 68 volunteers have agreed to participate in the nine-month study. Half the group
is randomly assigned to work while standing, and the other half is assigned to work while sitting. At the end of the study, the mean number of back problems between the two
groups will be calculated. The officer will use the results to estimate the difference in the mean number of back problems between those who work while standing and those who
work while sitting
Which of the following is an appropriate inference procedure for the study?

Answer:

-2, -7/6, -9/4, -1 1/2, -2, -1

Step-by-step explanation:

1/2 - 2 1/2 = -2

1 1/3 - 2 1/2= 1 2/6- 2 3/6 = -7/6

1/4- 2 2/4 = -9/4

1 - 2 1/2= -1 1/2

1/2 - 2 1/2= -2

1 1/2 - 2 1/2= -1

Hope this helps :0

Answer:

the second option because it's three times the width so it would be time the W

Step-by-step explanation:

Answer:

the guy above me is correct

Step-by-step explanation:

just did the test got a 100%

Answer:

120 Degrees

Step-by-step explanation:

Angle T and R are vertical angles meaning they are equal so combine the equations: 31x - 4 = 29x + 4, then solve using inverse operations

subtract 31x from both sides to get -4 = -2x + 4

Then subtract 4 from both sides to get -8 = -2x, now that we have isolated the variable we have to divide by -2 on both sides getting us x = 4, then plug in the four to the equation for angle R getting you 29 times 4 which equals 116 + 4 = 120

Answer:

This function has a local minimum at x = 10 with output value -693

and a local maximum at x = 1 with output value 36.

Step-by-step explanation:

see attached desmos graph.

Answer:

JjKjKjKk

Step-by-step explanation:

Answer:

a) x²-x-6

b) 2x²-11x+12

c) x²-4

Step-by-step explanation:

See image!

Answer:

12 different possibility

Step-by-step explanation:

1- pbj, cookie, juice

2-pbj, cookie, milk

3-pbj, cookie water

4-pbj,brownie, juice

5-pbj, brownie milk

6-pbj, brownie water

7-turkey, cookie, juice

8-turkey, cookie, milk

9-turkey, cookie, water

10-turkey, brownie, juice

11-turkey, brownie, milk

12-turkey, brownie, water

Answer:

B

Step-by-step explanation:

B is correct

Hope this helps!!!

Answer:

Shona ran farther

Step-by-step explanation:

3/4 *3/3 is 9/12 and 9/12 is bigger than 7/12

Answer:

Shona

Step-by-step explanation:

Both fractions have different denominators. To get a better picture of who ran further, let's have both fractions have the same denominator.

Let's convert the smaller denominator to the bigger one.

In order to do this, we will multiply top and bottom by 3:

[tex]\frac{3}{4} *\frac{3}{3} \\\frac{9}{12}[/tex]

Now, we compare the two fractions by seeing which numerator is closer to denominator.

From this comparison, the converted fraction, [tex]\frac{9}{12}[/tex] is closer to 12.

Therefore, Shona ran further.

Answer:

4yd

144

Step-by-step explanation:

because 4yd is greater than 144

Answer:

8h = P

Step-by-step explanation:

you do the amount she makes and hour (8$) multiply by the number of hou   hours (h), and make it equal the total pay (P). So you would write 8h = P (8$ for each hour equals her total pay for those hours)

Answer:

D. 72

Step-by-step explanation:

Answer: C

Step-by-step explanation:132/6=22

Answer:

Step-by-step explanation:

132-6t=0

-6t=-132

t=22 minutes

Answer:

5150

Step-by-step explanation:

Answer: v(t) = 5,000(1.03)t

Step-by-step explanation:

Answer:

option B is correct answer of this question

hope it helps

Answer:

Option B

Step-by-step explanation:

As,

In all the options 3rd process of the simplification Only B option is correct as,

When the bases are same the exponents get added

So, Option B is only the correct simplification of

[tex]{ ({9}^{ \frac{1}{2} })}^{2} [/tex]

To - 9

Answer:

i can give u 2 10 and 7   acute, acute and straight

Step-by-step explanation:

Answer:

x  =  −

6

Step-by-step explanation:

Nearly Positive hope i helped :)

Answer:

second answer should be corr3ect tell em if wrong

Step-by-step explanation:

Answer:

it’s 23000    

Step-by-step explanation:

Answer:

750 m

Step-by-step explanation:

Theorem:

In a triangle, a segment whose endpoints are the midpoints of two sides is parallel and half the length of the third side.

In triangle LMN, segment DF has endpoints which are midpoints of sides LM and MN. That makes segment DF parallel to side LN and half the length of LN.

The shortest path from point D to point N is segments DF and FN.

Point F is the midpoint of segment MN.

MN = 800 m

FN = (1/2)MN = (1/2)(800 m) = 400 m

From the theorem,

DF = (1/2)LN

DF = (1/2)(700 m) = 350 m

shortest path = DF + FN = 350 m + 400 m = 750 m

Answer: 750 m

Answer:(4.2,11)

Step-by-step explanation:

Answer:

The answer is 4 x^2 + 1

Step-by-step explanation:

X^2 + 3x^2 + 4 - 3

(x^2 + 3 x^2) + (4 − 3)

4 x^2 + 1

Answer:

Step-by-step explanation:

Explanations Are below

Step 1

x^2 + 3x^2 + 4 - 3  Observe the equation

Step 2

x^2 + 3x^2 + 4 - 3  Combine the like terms

(x2+3x2)+(4+-3)

Step 3

(x2+3x2)+(4+-3)  Simplify by adding and subtracting

Answer: 4x^2+1

Answer:

1) -16<x

2) 8>x

3) 10≤x

Step-by-step explanation:

1) -16<x

2) 8>x

3) 10≤x

Answer:

question 6 is -16>x

question 7 is 8>x

question 8 10<=x

Answer:

39.52 L

Step-by-step explanation:

10.4x3.8

1 gallon = 3.8 liters

3.8x10=38 The closest one is H

Answer:

12x+10

Step-by-step explanation:

10x+2(x+5)

10x+2x+10

12x+10

Answer:

these are real solutions

Answer:

i would say "a"

Step-by-step explanation:

essentially, "a" "c" and "e" are all the same thing but most people would write it as "a"