1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marissa [1.9K]
3 years ago
6

The leader of two postpartum women’s support groups is interested in the depression levels of the women in her groups. She admin

isters the Center for Epidemiologic Studies Depression Scale (CES-D) screening test to the members of her groups. The CES-D is a 20-question self-test that measures depressive feelings and behaviors during the previous week.
The mean depression level from the screening test for the 6 women in the first group is μ1= 16; the mean depression level for the 10 women in the second group is μ2=12.

Without calculating the weighted mean for the combined group, you know that the weighted mean is:

a. Midway between 16 and 12
b. Closer to 16 than to 12
c. Closer to 12 than to 16
Mathematics
1 answer:
Sedbober [7]3 years ago
7 0

Answer:

The answer is "Option a".

Step-by-step explanation:

\text{Weighted mean} = \frac{(6\times 16+10 \times 12)}{16}

                         = \frac{( 96 +120)}{16}\\\\ = \frac{(216)}{16}\\\\ =  13.5

\text{Weighted mean} = \frac{( 6\times 18+10\times 14)}{16}

                        = \frac{( 6\times 18 +10\times 14)}{16}\\\\= \frac{( 108+140)}{16}\\\\= \frac{( 248)}{16}\\\\= 15.5

You might be interested in
Translate the sentence into an equation.
Andrews [41]
4x + 6 = 9 is the equation
6 0
3 years ago
Read 2 more answers
A geometric sequence has an initial value of 9 and a common ratio of 5. What function could represent this situation?
leonid [27]

Answer:

The functions that represent this situation are A and C.

Step-by-step explanation:

A geometric sequence goes from one term to the next by always multiplying or dividing by the same value.

In geometric sequences, the ratio between consecutive terms is always the same. We call that ratio the common ratio.

This is the explicit formula for the geometric sequence whose first term is k and common ratio is r

6 0
3 years ago
Normally a new cell phone costs $500 you only have 450 to spend what happened what percent do you need the phone to be discounte
alina1380 [7]
450/500  how much you have to how much it costs
this equals to 90 % of the complete cost

100%-90%=10%

you need a 10 % discount

hope this helps

5 0
3 years ago
1) Triangle ABC is a similar to triangle QRS by the AA Similarity Postulate
kupik [55]
The m<B for question 1 is 46 degrees, for question 2 the m<Y is one hundred and seventeen degrees.
8 0
3 years ago
Who ever gets this wright first gets a thanks!
melisa1 [442]
Your answer is 15, if you need help to figure out how I did that let me know.

4 0
3 years ago
Other questions:
  • (8y-5)-(2y-9) plz help
    6·1 answer
  • Plzzzzzzzzz helpppppppppp asappppppp
    13·1 answer
  • Jackson drove 1,080 miles<br> in 20 hours. What was his<br> speed in miles per hour?
    15·1 answer
  • Alicia randomly selects one number from the list of numbers below.
    5·2 answers
  • Factor completely 49x^2-36
    12·2 answers
  • The perimeter a rectangle is 46 in if the width of the rectangle is 9 inches what is the length ​
    5·1 answer
  • 1. Annette scored 85. 73. and 94 on her first three quizzes. How high does she need to
    15·2 answers
  • Help please thank you :)
    5·1 answer
  • The radius of the pizza is 15 cm long.
    13·1 answer
  • An acute triangle has sides measuring 10cm and 16cm. What is the length of the third side?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!