Answer:
Step-by-step explanation:
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
Answer:
The answer is 25 cm.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
equation of a line =
y-y1=m(x-x1)
where m is the gradient and X1 and y1 are the points on the line.
slope= gradient
<em>4=X, 1/3= y</em>
y-1/3 = 3/4 (x-4)
The answer is B because when you solve for x that is what you get