Question

Question 2

With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded to the nearest dollar) and degree of customer satisfaction (on a scale of 1 - 10 with a 1 being not at all satisfied and a 10 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below.

dollars	satisfaction
11	6
18	8
17	10
15	4
9	9
5	6
12	3
19	5
22	2
25	10

d)   What is the R²for this model?

e)   Calculate a 90% confidence interval for b₁

f)    Test the null hypothesis that b₁= 0 (perform a two-sided test), using α = 0.1. Is the model useful?

Answer 1

please like ...and rate my answer your like motivate us to do more hard work