Conclusion Reject the null hypothesis, there is sufficient evidence that p> 0. O Reject the null hypothesis, there is insufficient evidence that p> 0. O Fail to reject the null hypothesis, there is insufficient evidence that p> 0. O Fail to reject the null hypothesis, there is sufficient evidence that p> 0. (c) Verify that S 4.5843, a- 1.5185, and b- 0.1672. S, 9. (d) Find the predicted distance (km/100) when a drift bottle has been floating for 90
Conclusion Reject the null hypothesis, there is sufficient evidence that p> 0. O Reject the null hypothesis, there is insufficient evidence that p> 0. O Fail to reject the null hypothesis, there is insufficient evidence that p> 0. O Fail to reject the null hypothesis, there is sufficient evidence that p> 0. (c) Verify that S 4.5843, a- 1.5185, and b- 0.1672. S, 9. (d) Find the predicted distance (km/100) when a drift bottle has been floating for 90
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Ocean currents are important in studies of climate change, as well as ecology studies of dispersal of plankton. Drift bottles are used to study ocean currents in the Pacific near Hawaii, the Solomon Islands, New Guinea, and other islands.
Let x represent the number of days to recovery of a drift bottle after release and y represent the distance from point of release to point of recovery in km/100. The following data are representative of one study using drift bottles to study
ocean currents.
x days
y km/100
71
76
31
92
203
14.2
19.6
5.8
11.2
35.9
(a) Verify that Ex = 473, Ey = 86.7, Ex² = 61,451, Ey?
2033.69, Exy = 10995.7, and r 0.93868.
%3D
%3D
%3D
%3D
%3D
Σχ
Ey
Ex?
Ey2
Σχy
(b) Use a 1% level of significance to test the claim p > 0. (Use 2 decimal places.)
critical t
Conclusion
Reject the null hypothesis, there is sufficient evidence that p > 0.
Reject the null hypothesis, there is insufficient evidence that p > 0.
O Fail to reject the null hypothesis, there is insufficient evidence that p > 0.
Fail to reject the null hypothesis, there is sufficient evidence that p > 0.
(c) Verify that S 4.5843, a - 1.5185, and b 0.1672.
e
se
a
(d) Find the predicted distance (km/100) when a drift bottle has been floating for 90 days. (Use 2 decimal places.)
km/100
(e) Find a 90% confidence interval for your prediction of part (d). (Use 1 decimal place.)
lower limit
km/100
upper limit
km/100
(f) Use a 1% level of significance to test the claim that ß > 0. (Use 2 decimal places.)
critical t
Conclusion
Reiect the null hypothesis, there is sufficient evidence that B> 0.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ed43a03-4680-410a-b9f6-bb0da0ec717f%2F8e8afe7d-2201-49c2-95e3-21da0c2ac4d0%2Fbgshk9k_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Ocean currents are important in studies of climate change, as well as ecology studies of dispersal of plankton. Drift bottles are used to study ocean currents in the Pacific near Hawaii, the Solomon Islands, New Guinea, and other islands.
Let x represent the number of days to recovery of a drift bottle after release and y represent the distance from point of release to point of recovery in km/100. The following data are representative of one study using drift bottles to study
ocean currents.
x days
y km/100
71
76
31
92
203
14.2
19.6
5.8
11.2
35.9
(a) Verify that Ex = 473, Ey = 86.7, Ex² = 61,451, Ey?
2033.69, Exy = 10995.7, and r 0.93868.
%3D
%3D
%3D
%3D
%3D
Σχ
Ey
Ex?
Ey2
Σχy
(b) Use a 1% level of significance to test the claim p > 0. (Use 2 decimal places.)
critical t
Conclusion
Reject the null hypothesis, there is sufficient evidence that p > 0.
Reject the null hypothesis, there is insufficient evidence that p > 0.
O Fail to reject the null hypothesis, there is insufficient evidence that p > 0.
Fail to reject the null hypothesis, there is sufficient evidence that p > 0.
(c) Verify that S 4.5843, a - 1.5185, and b 0.1672.
e
se
a
(d) Find the predicted distance (km/100) when a drift bottle has been floating for 90 days. (Use 2 decimal places.)
km/100
(e) Find a 90% confidence interval for your prediction of part (d). (Use 1 decimal place.)
lower limit
km/100
upper limit
km/100
(f) Use a 1% level of significance to test the claim that ß > 0. (Use 2 decimal places.)
critical t
Conclusion
Reiect the null hypothesis, there is sufficient evidence that B> 0.
![1090662&dep%3D28174036&elSBN=9781337713184#Q5
O Fail to reject the null hypothesis, there is sufficient evidence that p > 0.
(c) Verify that S = 4.5843, a 1.5185, and b 0.1672.
Se
a
b.
(d) Find the predicted distance (km/100) when a drift bottle has been floating for 90 days. (Use 2 decimal places.)
km/100
(e) Find a 90% confidence interval for your prediction of part (d). (Use 1 decimal place.)
lower limit
km/100
upper limit
km/100
(f) Use a 1% level of significance to test the claim that B > 0. (Use 2 decimal places.)
critical t
Conclusion
Reject the null hypothesis, there is sufficient evidence that B > 0.
Reject the null hypothesis, there is insufficient evidence that B > 0.
Fail to reject the null hypothesis, there is insufficient evidence that B > 0.
Fail to reject the null hypothesis, there is sufficient evidence that B > 0.
(9) Find a 95% confidence interval for ß and interpret its meaning in terms of drift rate. (Use 2 decimal places.)
lower limit
upper limit
Interpretation
For every day of drift, the distance drifted increases by an amount that falls within the confidence interval.
For every day of drift, the distance drifted decreases by an amount that falls within the confidence interval.
For every day of drift, the distance drifted decreases by an amount that falls outside the confidence interval.
For every day of drift, the distance drifted increases by an amount that falls outside the confidence interval.
(h) Consider the following scenario. A sailboat had an accident and radioed a Mayday alert with a given latitude and longitude just before it sank. The survivors are in a small (but well provisioned) life raft drifting in the part of the
Pacific Ocean under study. After 30 days, how far from the accident site should a rescue plane expect to look? (Use 2 decimal places.)
km/100](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ed43a03-4680-410a-b9f6-bb0da0ec717f%2F8e8afe7d-2201-49c2-95e3-21da0c2ac4d0%2F38mtjkw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1090662&dep%3D28174036&elSBN=9781337713184#Q5
O Fail to reject the null hypothesis, there is sufficient evidence that p > 0.
(c) Verify that S = 4.5843, a 1.5185, and b 0.1672.
Se
a
b.
(d) Find the predicted distance (km/100) when a drift bottle has been floating for 90 days. (Use 2 decimal places.)
km/100
(e) Find a 90% confidence interval for your prediction of part (d). (Use 1 decimal place.)
lower limit
km/100
upper limit
km/100
(f) Use a 1% level of significance to test the claim that B > 0. (Use 2 decimal places.)
critical t
Conclusion
Reject the null hypothesis, there is sufficient evidence that B > 0.
Reject the null hypothesis, there is insufficient evidence that B > 0.
Fail to reject the null hypothesis, there is insufficient evidence that B > 0.
Fail to reject the null hypothesis, there is sufficient evidence that B > 0.
(9) Find a 95% confidence interval for ß and interpret its meaning in terms of drift rate. (Use 2 decimal places.)
lower limit
upper limit
Interpretation
For every day of drift, the distance drifted increases by an amount that falls within the confidence interval.
For every day of drift, the distance drifted decreases by an amount that falls within the confidence interval.
For every day of drift, the distance drifted decreases by an amount that falls outside the confidence interval.
For every day of drift, the distance drifted increases by an amount that falls outside the confidence interval.
(h) Consider the following scenario. A sailboat had an accident and radioed a Mayday alert with a given latitude and longitude just before it sank. The survivors are in a small (but well provisioned) life raft drifting in the part of the
Pacific Ocean under study. After 30 days, how far from the accident site should a rescue plane expect to look? (Use 2 decimal places.)
km/100
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