We have the sample size, sample mean and the sample standard deviation. Since the population standard deviation is not know, we will use t-distribution to find the confidence interval.
The critical t value for 95% confidence interval and 63 degrees of freedom is 1.998.
The 95% confidence for the population mean will be:

Thus, the 95% confidence interval for the population mean will be (115,123)
So, option A is the correct answer
You use the substitution method simultaneously. He worked 9h at job A
Answer:
Input: 0, 2, 4
Output: 3, -1, 1
Step-by-step explanation:
0-3= -3
2-3= -1
4-3= 1
Answer:
what!!!!!!!!!!!!!!!!!! so only for dudesssssssss
By trial and error, I got it first correctly. The granola
bars cost $1 each and the yogurt is $.50 per cup. By plugging this in to each
equation, you'll see that 12 granola bars equals $12, and 7 cups of yogurt
equals $3.50, for a total of $15.50. The second account would produce $6 +
$5.50, which equals $11.50.