Answered: In a study of parasite–host…

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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Question

In a study of parasite–host relationships, 242 larvae
of the moth Ephestia were exposed to parasitization by the Ichneumon fly. The following table shows the number of Ichneumon eggs found in each of the Ephestia larva.

For these data, yQ = 2.368 and s = 1.950. Student’s t
method yields the following 95% confidence interval for
m, the population mean number of eggs per larva:

2.12 < μ < 2.61

(a) Does it appear reasonable to assume that the
population distribution of Y is approximately normal?
Explain.
(b) In view of your answer to part (a), on what grounds
can you defend the application of Student’s t method
to these data?

Number of eggs (Y)
Number of larvae
21
1
77
2
52
3
41
4
23
5
13
6
9
7
1
8
2
9
10
2
11
12
13
14
15
1
Total
242

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