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Sergio [31]
3 years ago
11

Find the point estimate for the true difference between the given population means. Round your answer to three decimal places.

Mathematics
1 answer:
uranmaximum [27]3 years ago
8 0

Answer:

Point Estimate for different between population means = - 0.99

Step-by-step explanation:

We are given data of two samples and we have to find the best point estimate of the true difference between two population means. Remember that in absence of data about population the best estimator is the sample data. So, we will find the means of both sample data and find the difference of that means. This difference between the means of sample data will be the best point estimate for the true difference between the population means.

Formula to calculate the mean is:

Mean=\frac{\text{Sum of Values}}{\text{Number of Values}}

Mean of Sample 1:

Mean=\frac{1414}{11}=128.55

Mean of Sample 2:

Mean=\frac{1684}{13}=129.54

Therefore the best point estimate for difference between two population means would be = Mean of Sample 1 - Mean of Sample 2

= 128.55 - 129.54

= - 0.99

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There are 9 numbers written, beginning with: 8, 5, 4, 9, 1, ... Finish the sequence.
alexdok [17]

Answer:

14    -50    -29    -541

Step-by-step explanation:

8-3=5-1=4+5=9-8=1+13=14-64=-50+21=-29-512=-541  

i got this by looking up sequence pattern finder in google and clicking on the second option then inserting the numbers you gave hope this helps

4 0
3 years ago
The area is approximately ___ square ft. <br><br>use 3.14 for pi​
Nadya [2.5K]

Answer:

200.96

Step-by-step explanation:

divide the diameter by 2, to get 8. then multiply 8 by 8 to get 64. 64×3.14 is 200.96

6 0
3 years ago
A horse ran 800 m in 40 seconds 1200 m in 60 seconds in 480 m and 24 seconds is this a proportional relationship if so what is t
Naddik [55]

Answer:

Yes this is a proportional relationship.

Equation is;

D=20T

Step-by-step explanation:

A horse run;

800m in 40 seconds

1200m in 60 seconds

and

480m inn 24 seconds

800m ÷ 40s = 1200m ÷ 60s = 480m ÷ 24s = 20

The equation here is Distance(D) = 20 × Time(T)

D=20T

It implies that the distance of the horse is directly proportional to the time it takes to run.

8 0
3 years ago
3/4 −(x+ 1 /8 )= 5/16
IRINA_888 [86]

3/4-(x+1/8)=5/16

3/4-x-1/8=5/16

3/4-1/8-5/16=x

Common denominator: 16

x=(4×3-2×1-5)/16=(12-2-5)/16=5/16

Answer: x=5/16

8 0
3 years ago
2(x + 2) + 3x = 2(x + 1) + 1
monitta

Answer:

X= -1/3

Step-by-step explanation:

In the picture it shows the work that i did

4 0
3 years ago
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