STATISTICS FOR ENGINEERS+SCI.-ACCESS
4th Edition
ISBN: 9781259998584
Author: Navidi
Publisher: MCG
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Textbook Question
Chapter 5.3, Problem 17E
The article “Filtration Rates of the Zebra Mussel (Dreissena polymorpha) on Natural Seston from Saginaw Bay. Lake Huron“ (D. Fanslow, T. Nalepa, and G. Lang, Journal of Great Lakes Research 1995:489–500) reports measurements of the rates (in mL/mg/h) at which mussels filter seston (particulate matter suspended in seawater).
- a. In the year 1992, 5 measurements were made in the Outer Bay; these averaged 21.7 with a standard deviation of 9.4. Find a 95% confidence interval for the
mean filtration rate in the Outer Bay. - b. In the year 1992, 7 measurements were made in the Inner Bay; these averaged 8.6 with a standard deviation of 4.5. Should the Student’s t distribution be used to find a 95% confidence interval for the mean filtration rate for the Inner Bay? If so, find the confidence interval. If not, explain why not.
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323.2
409.5
311.0
326.5
316.8
349.8
309.7
6:
423.1
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418.4
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473.4
441.2
465.8
Does variation in plate length have any effect on true average axial stiffness? State the relevant hypotheses using analysis of variance.
H0: ?1 ≠ ?2 ≠ ?3 ≠ ?4 ≠ ?5Ha: at least two ?i's are equalH0: ?1 = ?2 = ?3 = ?4 = ?5Ha: all five ?i's are unequal H0: ?1 = ?2 = ?3 = ?4 = ?5Ha: at least two ?i's are unequalH0: ?1 ≠ ?2 ≠ ?3 ≠ ?4 ≠ ?5Ha: all five ?i's are equal
Test the relevant hypotheses using analysis of variance with ? = 0.01. Display your results in an ANOVA table. (Round your answers to two decimal places.)
Source
Degrees offreedom
Sum…
Chapter 5 Solutions
STATISTICS FOR ENGINEERS+SCI.-ACCESS
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