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Trava [24]
3 years ago
11

Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. The results in the screen disp

lay are based on a​ 95% confidence level. Write a statement that correctly interprets the confidence interval. TInterval ​(13.046,22.15) x overbarequals17.598 Sxequals16.01712719 nequals50 Choose the correct answer below. A. We have​ 95% confidence that the limits of 13.05 Mbps and 22.15 Mbps contain the true value of the mean of the population of all data speeds at the airports. B. We have​ 95% confidence that the limits of 13.05 Mbps and 22.15 Mbps contain the sample mean of the data speeds at the airports. C. The limits of 13.05 Mbps and 22.15 Mbps contain the true value of the mean of the population of all data speeds at the airports. D. The limits of 13.05 Mbps and 22.15 Mbps contain​ 95% of all of the data speeds at the airports.
Mathematics
1 answer:
konstantin123 [22]3 years ago
3 0

Answer:

A is the correct answer

Step-by-step explanation:

A confidence interval tells us within some level of certainty (in this case, we are 95% certain) that the true mean of the internet speed at the airport is somewhere in the range of 13.04mbps and 22.15mbps.  We can't say where it is in that range, and we're only 95% confidence, so there's a 5% chance we are wrong and the mean is not in that range.  It could be higher or lower.

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Sonja [21]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Davis wants to pour 5 gallons of punch into ½ gallon jugs How many jugs will he need?

A. 2½

B. 5½

C. 10

D. 15

Answer:

Number of jugs = 10

Davis will need 10 jugs to pour 5 gallons of punch into ½ gallon jugs.

Step-by-step explanation:

David has 5 gallons of punch that he wants to pour into jugs.

The capacity of 1 jug is ½ gallon.

The required number of jugs may be found as

Number of jugs = gallons of punch/capacity of jug

For the given case, we have

Gallons of punch = 5

capacity of jug (in gallons) = ½ = 0.5

So, the required number of jugs is,

Number of jugs = 5/½

Number of jugs = 5/0.5

Number of jugs = 10

Therefore, Davis will need 10 jugs to pour 5 gallons of punch into ½ gallon jugs.

7 0
3 years ago
(7 x 10^5) divided by (2 x 10^2) in standard form
RideAnS [48]

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Step-by-step explanation:

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1000 is 10 cubed

3500÷1000 is 3.5

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7 0
2 years ago
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Answer:

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Step-by-step explanation:

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