Bardi Trucking Co., located in Cleveland, Ohio, makes deliveries in the Great Lakes region, the Southeast, and the Northeast. Jim Bardi, the president, is studying the relationship between the distance a shipment must travel and the length of time, in days, it takes the shipment to arrive at its destination. To investigate, Mr. Bardi selected a random sample of 20 shipments made last month. Shipping distance is the independent variable and shipping time is the dependent variable. The results are as follows: Shipment Distance (miles) Shipping Time (days) Shipment Distance (miles) Shipping Time (days) 1 656 5 11 862 7 2 853 14 12 679 5 3 646 6 13 835 13 4 783 11 14 607 3 5 610 8 15 665 8 6 841 10 16 647 7 7 785 9 17 685 10 8 639 9 18 720 8 9 762 10 19 652 6 10 762 9 20 828 10 Click here for the Excel Data File a. Draw a scatter diagram. Based on these data, does it appear that there is a relationship between how many miles a shipment has to go and the time it takes to arrive at its destination? 1. On the graph below, use the point tool to plot the point corresponding to the first Distance and its Shipping Time (Distance 1). 2. Repeat the process for the remainder of the sample Distance 2, Distance 3, … ). 3. To enter exact coordinates, double-click on the point and enter the exact coordinates of x and y. b-1. Using a 0.05 significance level, state the null and alternate hypotheses. multiple choice 1 H0: ρ ≤ 0 and H1: ρ > 0 H0: ρ ≥ 0 and H1: ρ < 0 H0: ρ ≤ 0 and H1: ρ < 0 H0: ρ ≤ 0 and H1: ρ ≥ 0 b-2. Using a 0.05 significance level, what is the test statistics? (Round your answer to 2 decimal places.) b-3. Using a 0.05 significance level, what is the p-value? (Round your answer to 4 decimal places.) b-4. Using a 0.05 significance level, what is your decision regarding the null hypotheses? b-5. At the 0.05 significance level, can we conclude that there is a positive correlationbetween distance and time? multiple choice 2 Yes No c-1. Determine the coefficient of determination. (Round your answer to 3 decimal places.) c-2. Fill in the blank below. (Round your answer to 1 decimal place.) d. Determine the standard error of estimate. (Round your answer to 3 decimal places.) e. Would you recommend using the regression equation accurately predict shipping time? multiple choice 3 Yes No

Bardi Trucking Co., located in Cleveland, Ohio, makes deliveries in the Great Lakes region, the Southeast, and the Northeast. Jim Bardi, the president, is studying the relationship between the distance a shipment must travel and the length of time, in days, it takes the shipment to arrive at its destination. To investigate, Mr. Bardi selected a random sample of 20 shipments made last month. Shipping distance is the independent variable and shipping time is the dependent variable. The results are as follows: Shipment Distance (miles) Shipping Time (days) Shipment Distance (miles) Shipping Time (days) 1 656 5 11 862 7 2 853 14 12 679 5 3 646 6 13 835 13 4 783 11 14 607 3 5 610 8 15 665 8 6 841 10 16 647 7 7 785 9 17 685 10 8 639 9 18 720 8 9 762 10 19 652 6 10 762 9 20 828 10 Click here for the Excel Data File a. Draw a scatter diagram. Based on these data, does it appear that there is a relationship between how many miles a shipment has to go and the time it takes to arrive at its destination? 1. On the graph below, use the point tool to plot the point corresponding to the first Distance and its Shipping Time (Distance 1). 2. Repeat the process for the remainder of the sample Distance 2, Distance 3, … ). 3. To enter exact coordinates, double-click on the point and enter the exact coordinates of x and y. b-1. Using a 0.05 significance level, state the null and alternate hypotheses. multiple choice 1 H0: ρ ≤ 0 and H1: ρ > 0 H0: ρ ≥ 0 and H1: ρ < 0 H0: ρ ≤ 0 and H1: ρ < 0 H0: ρ ≤ 0 and H1: ρ ≥ 0 b-2. Using a 0.05 significance level, what is the test statistics? (Round your answer to 2 decimal places.) b-3. Using a 0.05 significance level, what is the p-value? (Round your answer to 4 decimal places.) b-4. Using a 0.05 significance level, what is your decision regarding the null hypotheses? b-5. At the 0.05 significance level, can we conclude that there is a positive correlationbetween distance and time? multiple choice 2 Yes No c-1. Determine the coefficient of determination. (Round your answer to 3 decimal places.) c-2. Fill in the blank below. (Round your answer to 1 decimal place.) d. Determine the standard error of estimate. (Round your answer to 3 decimal places.) e. Would you recommend using the regression equation accurately predict shipping time? multiple choice 3 Yes No

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Exercise 13-51 (Static) (LO13-6)

Shipment	Distance (miles)	Shipping Time (days)	Shipment	Distance (miles)	Shipping Time (days)
1		656	5		11	862	7
2		853	14		12	679	5
3		646	6		13	835	13
4		783	11		14	607	3
5		610	8		15	665	8
6		841	10		16	647	7
7		785	9		17	685	10
8		639	9		18	720	8
9		762	10		19	652	6
10		762	9		20	828	10

Click here for the Excel Data File

a. Draw a scatter diagram. Based on these data, does it appear that there is a relationship between how many miles a shipment has to go and the time it takes to arrive at its destination?

1. On the graph below, use the point tool to plot the point corresponding to the first Distance and its Shipping Time (Distance 1).

2. Repeat the process for the remainder of the sample Distance 2, Distance 3, … ).

3. To enter exact coordinates, double-click on the point and enter the exact coordinates of x and y.

b-1. Using a 0.05 significance level, state the null and alternate hypotheses.

multiple choice 1

H₀: ρ ≤ 0 and H₁: ρ > 0
H₀: ρ ≥ 0 and H₁: ρ < 0
H₀: ρ ≤ 0 and H₁: ρ < 0
H₀: ρ ≤ 0 and H₁: ρ ≥ 0

b-2. Using a 0.05 significance level, what is the test statistics? (Round your answer to 2 decimal places.)

b-3. Using a 0.05 significance level, what is the p-value? (Round your answer to 4 decimal places.)

b-4. Using a 0.05 significance level, what is your decision regarding the null hypotheses?

b-5. At the 0.05 significance level, can we conclude that there is a positive correlationbetween distance and time?

multiple choice 2

c-1. Determine the coefficient of determination. (Round your answer to 3 decimal places.)

c-2. Fill in the blank below. (Round your answer to 1 decimal place.)

d. Determine the standard error of estimate. (Round your answer to 3 decimal places.)

e. Would you recommend using the regression equation accurately predict shipping time?

multiple choice 3

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