The pulse rate of 11 people was measured before and after go

The pulse rate of 11 people was measured before and after going on a new thrill ride at the park. a researcher wants to determine if the pulse rate \"after is significantly more than the pulse rate \"before\". the results are as shown.
Subject......Before......After
1.............85.............85
2.............79.............84
3.............73.............87
4.............76.............84
5.............75.............83
6.............79.............92
7.............74.............77
8.............67.............71
9.............80.............76
10............69.............84
11............71.............80

Using a level of significane of 10%, is the pulse rate after sigificantly more than the pulse rate before?

I am not sure what equation to use I do konw that it is a T Test but not sure if this is dependednt or independednt. I think it is independent.

Show work.

Solution

This test is a paired t test.

As sample size is small t test is used.

H0: mu1 = mu2

Ha: mu1 < mu2

Left tailed test

t = 3.8027
  df = 10
  standard error of difference = 1.793

p value = 0.00175

As p <0.10, reject null hypothesis.

There is statistical evidence to show that

the pulse rate after sigificantly is more than the pulse rate before