4. For the expression below you are allowed to put in as many or as few brackets as you like. What
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:
The solution of the given set in interval form is .
Step-by-step explanation:
It is given in the question an inequality as .
It is required to determine the solution of the inequality.
To determine the solution of the inequality, solve the inequality and,
Step 1 of 2
Solve the inequality
Solve the inequality .
Step 2 of 2
The common solution from the above two solutions is x less than -4 and .
The solution set in terms of interval is .