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lord [1]
3 years ago
7

Round 144 to the nearest 100.

Mathematics
2 answers:
Wewaii [24]3 years ago
8 0

Answer:

100

Step-by-step explanation:

144 is below 150 so it would not be converted to 200.

damaskus [11]3 years ago
8 0

Answer:

100

Step-by-step explanation:

Because if the 2nd number is less than 5 its always lowered down

pls give me brainliest

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3 years ago
To illustrate the effects of driving under the influence of alcohol, a police officer brought a DUI simulator to a local high sc
nexus9112 [7]

Answer:

Check the explanation

Step-by-step explanation:

Here we have to first of all carry out dependent sample t test. consequently wore goggles first was selected at random for the reason that the reaction time in an emergency taken with goggles would be greater than the amount of reaction time in an emergency taken with not so weakened vision. So that we will get the positive differences d = impaired - normal

b)

To find 95% confidence interval first we need to find sample mean and sample sd for difference d = impaired minus normal.

We can find it using excel that is in the first attached image below,

Therefore sample mean ( \bar{X}_{d} ) = 0.98

Sample sd ( \bar{S}_{d} ) = 0.3788

To find 95% Confidence interval we can use TI-84 calculator,

Press STAT ----> Scroll to TESTS ---- > Scroll down to 8: T Interval and hit enter.

Kindly check the attached image below.

Therefore we are 95% confident that mean difference in braking time with impaired vision and normal vision is between ( 0.6888 , 1.2712)

Conclusion : As both values in the interval are greater than 0 , mean difference impaired minus normal is not equal to 0

There is significant evidence that  there is a difference in braking time with impaired vision and normal vision at 95% confidence level .

7 0
3 years ago
In a race, there are 15 runners. trophies for the race are awarded to the runners finishing in first through fourth place. in ho
kiruha [24]

Answer:

32,760

Step-by-step explanation:

Took the test

7 0
3 years ago
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The answer should be 5.
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Step-by-step explanation:

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