A website recieved 9347 visits during the first month of its launch. The third month witnessed three times the number of visits
2 answers:
Answer:
There were 1027 visits in the second month.
Step-by-step explanation:
A website received 9347 visits during the first month of its launch. +
Let the number of visits in the 2nd month be = x
The third month witnessed three times the number of visits than the second month that becomes 3x.
The website received 13455 visits over the three month period.
We can add up all to get;
=>
=>
=>
=>
Hence, there were 1027 visits in the second month.
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Answer:
The confidence interval on this case is given by:
(1)
For this case the confidence interval is given by (62.532, 76.478)[/tex]
And we can calculate the mean with this:
So then the mean for this case is 69.505
Step-by-step explanation:
Previous concepts
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".
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".
represent the sample mean
population mean (variable of interest)
represent the population standard deviation
n represent the sample size
Assuming the X follows a normal distribution
The confidence interval on this case is given by:
(1)
For this case the confidence interval is given by (62.532, 76.478)[/tex]
And we can calculate the mean with this:
So then the mean for this case is 69.505