If a geometric sequence has a1 = 256 and a8 = 512, find the exact value of the common ratio ????.
1 answer:
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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
Answer:
7 integers
Step-by-step explanation:
The inequality to solve is
We can do algebra and solve this:
If we solve , we will get the intercepts. So:
<em>Since, the inequality is less than, the solution set is all numbers between -4 and 4. So</em>
<em>-4 < n < 4</em>
<em />
<em>*note: -4 and 4 is NOT included, so the integers in the range are:</em>
<em>-3, -2, -1, 0, 1 , 2, 3</em>
<em>Which is </em><em>7 integers.</em>