DATAfile: HoursPts A statistical program is recommended. A marketing professor at Givens College is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 10 students who took the course last quarter follow. Hours Total Spent Studying Points Earned 45 40 30 35 90 75 60 65 105 90 65 50 90 90 80 80 55 45 75 65 (a) Develop an estimated regression equation showing how total points earned can be predicted from hours spent studying. (Round your numerical values to two decimal places.) (b) Test the significance of the model with a = 0.05. (Use the F test.) State the null and alternative hypotheses. O Hoi 8,0 H B, -0 O Ho: B 20 O Ho: Bo0 HB =0 O Ho: B, - 0 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value State your conclusion. O Do not reject Ha. We cannot conclude that the relationship between hours spent studying and total points earned is significant. O Do not reject Hg. We conclude that the relationship between hours spent studying and total points earned is significant. Reject H. We conclude that the relationship between hours spent studying and total points earned is significant. O Reject Hg. We cannot conclude that the relationship between hours spent studying and total points earned is significant. (c) Predict the total points earned by Mark Sweeney. He spent 70 hours studying. (Round your answer to two decimal places.) points
DATAfile: HoursPts A statistical program is recommended. A marketing professor at Givens College is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 10 students who took the course last quarter follow. Hours Total Spent Studying Points Earned 45 40 30 35 90 75 60 65 105 90 65 50 90 90 80 80 55 45 75 65 (a) Develop an estimated regression equation showing how total points earned can be predicted from hours spent studying. (Round your numerical values to two decimal places.) (b) Test the significance of the model with a = 0.05. (Use the F test.) State the null and alternative hypotheses. O Hoi 8,0 H B, -0 O Ho: B 20 O Ho: Bo0 HB =0 O Ho: B, - 0 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value State your conclusion. O Do not reject Ha. We cannot conclude that the relationship between hours spent studying and total points earned is significant. O Do not reject Hg. We conclude that the relationship between hours spent studying and total points earned is significant. Reject H. We conclude that the relationship between hours spent studying and total points earned is significant. O Reject Hg. We cannot conclude that the relationship between hours spent studying and total points earned is significant. (c) Predict the total points earned by Mark Sweeney. He spent 70 hours studying. (Round your answer to two decimal places.) points
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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DATAfile: HoursPts
A statistical program is recommended.
A marketing professor at Givens College is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 10 students who took the course last quarter follow.
Total
Points Earned
Hours
Spent Studying
45
40
30
35
90
75
60
65
105
90
65
50
90
90
80
80
55
45
75
65
(a) Develop an estimated regression equation showing how total points earned can be predicted from hours spent studying. (Round your numerical values to two decimal places.)
(b) Test the significance of the model with a = 0.05. (Use the F test.)
State the null and alternative hypotheses.
O Ho: Bo = 0
H: Bo 0
O Ho: B1 * 0
H: B2 = 0
O Ho: B120
O Ho: Bo * 0
H: Bo = 0
O Ho: B, = 0
H: B, = 0
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)
p-value =
State your conclusion.
O Do not reject H. We cannot conclude that the relationship between hours spent studying and total points earned is significant.
O Do not reject H.. We conclude that the relationship between hours spent studying and total points earned is significant.
O Reject H.. We conclude that the relationship between hours spent studying and total points earned is significant.
O Reject Ho. We cannot conclude that the relationship between hours spent studying and total points earned is significant.
(c) Predict the total points earned by Mark Sweeney. He spent 70 hours studying. (Round your answer to two decimal places.)
points
(d) Develop a 95% prediction interval for the total points earned by Mark Sweeney. (Round your answers to two decimal places.)
points to
points
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