Answer:
125%
Step-by-step explanation:
If you take the question
66 is what percent of 52.8?
and convert it into an equation it would be
66=x*52.8
Using this information we divide 66 by 52.8 this then gives us our final answer of 1.25 or 125%
Answer:
The 99% confidence interval would be given by (0.4581;0.5819)
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Solution to the problem
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by and . And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
The standard error for this case is given:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.4581;0.5819)
Yes there are outliers in this because the highest is out to 95 while the median is 45 and the lowest is 10 this shows the highest is double the median and there are has to be way higher than the normal weight