a. Should we run the test on all three columns or only on two columns? (Write "2" or "3" in the blank): b. The F-test statistic calculated for this problem is (Round to three decimal places). c. The critical-F value for this problem is (Round to three decimal places).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Emily is trying to check if the nutritional content of different formulas have different effects on mice. She uses five mice to test each type of formulas (A, B, and C)
and Formula A is simply a placebo. Each mouse's weight is recorded in grams. At the end of a specified time period, each mouse is weighed again and the net gain in
grams is recorded as shown in Table 1 below.
Formula
Formula
Formula
A
B
40
47
51
32
38
41
42
49
38
36
46
46
39
44
49
Using an F-test, determine whether or not the variance in weight gain is statistically the same among the mice that were using Formula B and Formula C.
Test at a confidence level of 90%. (HINT: Remember that the bigger standard deviation goes in the numerator when calculating the test statistic)
a. Should we run the test on all three columns or only on two columns? (Write "2" or "3" in the blank):
b. The F-test statistic calculated for this problem is
(Round to three decimal places).
c. The critical-F value for this problem is
(Round to three decimal places).
d. We have enough evidence that the variance of weight gains being compared are different. Write "True" or "False" in the blank:
Transcribed Image Text:Emily is trying to check if the nutritional content of different formulas have different effects on mice. She uses five mice to test each type of formulas (A, B, and C) and Formula A is simply a placebo. Each mouse's weight is recorded in grams. At the end of a specified time period, each mouse is weighed again and the net gain in grams is recorded as shown in Table 1 below. Formula Formula Formula A B 40 47 51 32 38 41 42 49 38 36 46 46 39 44 49 Using an F-test, determine whether or not the variance in weight gain is statistically the same among the mice that were using Formula B and Formula C. Test at a confidence level of 90%. (HINT: Remember that the bigger standard deviation goes in the numerator when calculating the test statistic) a. Should we run the test on all three columns or only on two columns? (Write "2" or "3" in the blank): b. The F-test statistic calculated for this problem is (Round to three decimal places). c. The critical-F value for this problem is (Round to three decimal places). d. We have enough evidence that the variance of weight gains being compared are different. Write "True" or "False" in the blank:
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