Degrees of freedom:| (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the two critical values. (Round to three or more decimal places.) O and
Degrees of freedom:| (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the two critical values. (Round to three or more decimal places.) O and
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
![An engineer working for a large agribusiness has developed two types of soil additives he calls Add1 and Add2. The engineer wants to test whether there is any
difference between the two additives in the mean yield of tomato plants grown using these additives.
The engineer studies a random sample of 11 tomato plants grown using Add1 and a random sample of 13 tomato plants grown using Add2. (These samples are
chosen independently.) The plants grown with Add1 have a sample mean yield of 139 tomatoes with a sample variance of 510. The plants grown with Add2 have
a sample mean yield of 151.2 tomatoes with a sample variance of 2178.8.
Assume that the two populations of yields are approximately normally distributed. Can the engineer conclude, at the 0.05 level of significance, that there is a
difference between the population mean of the yields of tomato plants grown with Add1 and the population mean of the yields of tomato plants grown with
Add2?
Perform a two-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcef6e403-c3d7-49fd-a795-d60ccab6d54e%2Fe5a9f1fc-6291-44a3-b3d9-36cbbe176f57%2F7u5z6cph_processed.png&w=3840&q=75)
Transcribed Image Text:An engineer working for a large agribusiness has developed two types of soil additives he calls Add1 and Add2. The engineer wants to test whether there is any
difference between the two additives in the mean yield of tomato plants grown using these additives.
The engineer studies a random sample of 11 tomato plants grown using Add1 and a random sample of 13 tomato plants grown using Add2. (These samples are
chosen independently.) The plants grown with Add1 have a sample mean yield of 139 tomatoes with a sample variance of 510. The plants grown with Add2 have
a sample mean yield of 151.2 tomatoes with a sample variance of 2178.8.
Assume that the two populations of yields are approximately normally distributed. Can the engineer conclude, at the 0.05 level of significance, that there is a
difference between the population mean of the yields of tomato plants grown with Add1 and the population mean of the yields of tomato plants grown with
Add2?
Perform a two-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.)
![(b) Determine the type of test statistic to use.
t
Degrees of freedom:||
(c) Find the value of the test statistic. (Round to three or more decimal places.)
(d) Find the two critical values. (Round to three or more decimal places.)
I and](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcef6e403-c3d7-49fd-a795-d60ccab6d54e%2Fe5a9f1fc-6291-44a3-b3d9-36cbbe176f57%2Fcyskel_processed.png&w=3840&q=75)
Transcribed Image Text:(b) Determine the type of test statistic to use.
t
Degrees of freedom:||
(c) Find the value of the test statistic. (Round to three or more decimal places.)
(d) Find the two critical values. (Round to three or more decimal places.)
I and
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