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zepelin [54]
3 years ago
15

A researcher is gathering data to design a wearable device that measures heart rate from the wrist. He/She took wrist measuremen

ts from 10 people to determine what the average wrist size should be for said wearable device. The mean and standard deviation of 10 wrist measurements were calculated to be: Mean, (inches) i = 7.838 Standard | Deviation, Sx Sx = 0.844 Number of samples (n) 10 Determine a 99% confidence interval for the mean presented above. (Use the appropriate table)

Mathematics
1 answer:
shusha [124]3 years ago
3 0

Answer: 99% Confidence interval = 6.97, 8.706

Step-by-step explanation: Please find the attached document for the step by step explanation

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Please Subtract the Following Fractions.
vovangra [49]

¡Hola!

Your answer to the question is 10/12.

Step-by-step explanation:

By using the y^2-y^1/x^2-x^1

12-2= 10

16-4= 12

So your answer is 10/12.

Hope this Helps!

4 0
3 years ago
One third of a number is subtracted from eleven, the result is one and a half times the original number, what is the number
hichkok12 [17]

Answer:

-66/7

Step-by-step explanation:

1/3x-11=3/2x

2/6x-11=9/6x

7/6x=-11

x=-66/7

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3 years ago
In the school store you can buy 20 calculators for $120 how much would 5 calculators be
Masja [62]

Answer:

30 dollars

Step-by-step explanation:

120/20=6

6x5=30

Hope this helped.

4 0
3 years ago
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Please CHECK IF THIS IS CORRECT! Please!
Zielflug [23.3K]
Yes it is correct!!!
4 0
4 years ago
The ordered pairs (1, 1), (2, 8), (3, 27), (4, 64), and (5, 125) represent a function. What is a rule that represents this funct
Aleonysh [2.5K]
Hmm

2 times 4=8
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1 times 1=1
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aka
1 times 1^2=1
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x times x^2=x^3

the rule is y=x^3

3 0
3 years ago
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