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zepelin [54]
4 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]4 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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Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices. What is the total amount of options
solniwko [45]

Answer:

200

Step-by-step explanation:

Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices.

Now, 8 different models of cars with 5 different trim levels have (8 × 5) = 40 choices.

Similarly, with  8 different models of cars, with 5 different trim levels and 5 color choices, there will be total (40 × 5) = 200 options one could choose. ( Answer )

4 0
3 years ago
1. Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 2000/3 π inches. One day, her sink clogge
Anettt [7]

Answer:

Yes, your answers are correct.

The volume of a cone is given by V = 1/3πr²h.  Since the diameter of the first cone is 4, the radius is 2; therefore the volume is

V = 1/3π(2²)(8) = 32π/3

We divide the volume of the sink, 2000π/3, by the volume of the cone:

2000π/3 ÷ 32π/3 = 2000π/3 × 3/32π = 6000π/96π = 62.5 ≈ 63.

The diameter of the second conical cup is 8, so the radius is 4.  The volume then is:

V = 1/3π(4²)(8) = 128π/3

Dividing the volume of the sink, 2000π/3, by 128π/3:

2000π/3 ÷ 128π/3 = 2000π/3 × 3/128π = 6000π/384π = 15.625 ≈ 16

7 0
3 years ago
Order the fraction and decimals from least to greatest.<br> 0.78, 0.5, 3/5
ExtremeBDS [4]

Answer:

0.5, 3/5, 0.78

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Marco created a table to help him represent the sample space of spinning a spinner and flipping a coin. Result of spin Result of
Svetradugi [14.3K]

The probability that the result is green - tail is 1/6.

Spinner has three colors that are  red, green and yellow and coin has two sides that are  head or tail.

<h3>What is the formula for probability?</h3>

Divide the number of events by the number of possible outcomes

The sample space is,{(red - head; red - tail; green - head; green - tail; yellow - head; yellow - tail)}In total there are 6 ways to combine different colors with coin sides.

Therefore ,the probability that the result is green - tail is 1/6.

To learn more about the probability visit:

brainly.com/question/25870256

5 0
2 years ago
The star Alpha Centauri is approximately 40653230000000 kilometres from earth,write this number in standard form to 3 significan
almond37 [142]
4.065323 × 10^13
Hope this helps!
Vote me Brainliest!
8 0
3 years ago
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