Lin runs 5 laps around a track in 6 minutes. How many minutes per lap is that? ___minutes How many laps per minute is that? ___
1 answer:
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Answer:
C) 67.5 to 72.5
Step-by-step explanation:
The value to calculate the confidence interval is given as:
Margin of error is given by:
Using a sample of size n = 3, with 95% confidence the confidence interval came out to be 67 to 73.
We need to identify the new confidence interval if the sample size is increased to n = 16
If you observe the formula, you will see that the sample size(n) is in the denominator. This means, if value of n will be increased the value of fraction will be decreased, which will result in an overall smaller value of margin of error. Since, margin of error is smaller, the values of confidence interval will be closer to the mean.
From here, we can conclude that if sample size is increased, the confidence interval will get narrower. From the given options only option C contains a narrow confidence interval. Therefore, correct answer will be option C: 67.5 to 72.6
Answer:
The graph of the equation y=3x-2 is shown in the picture below!!
Step-by-step explanation:
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