25. An egg company is studying the effects of artificial lighting on egg production of chickens. A brood of chicks were separated at random into two groups, both raised in windowless coops with artificial lighting. One group followed a natural 24-hour per day light/dark cycle while the second group experienced an accelerated 20- hour day. The weekly egg productions for the two groups are summarized in the table below. Conduct a hypothesis test to determine whether egg production is higher with a 20-hour day as compared to a 24-hour day. The level of significance is 1%. Wnat is the conclusion of the hypothesis test? Sample size Mean number of eggs Standard Deviation 24-hour day (Group 2) 20-hour day (Group 1) 45 5.2 1.8 42 6.1 2.9 A. We have enough evidence to conclude that the sample mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. B. We do NOT have enough evidence to conclude that the sample mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. C. We have enough evidence to conclude that the population mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. D. We do NOT have enough evidence to conclude that the population mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day.
25. An egg company is studying the effects of artificial lighting on egg production of chickens. A brood of chicks were separated at random into two groups, both raised in windowless coops with artificial lighting. One group followed a natural 24-hour per day light/dark cycle while the second group experienced an accelerated 20- hour day. The weekly egg productions for the two groups are summarized in the table below. Conduct a hypothesis test to determine whether egg production is higher with a 20-hour day as compared to a 24-hour day. The level of significance is 1%. Wnat is the conclusion of the hypothesis test? Sample size Mean number of eggs Standard Deviation 24-hour day (Group 2) 20-hour day (Group 1) 45 5.2 1.8 42 6.1 2.9 A. We have enough evidence to conclude that the sample mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. B. We do NOT have enough evidence to conclude that the sample mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. C. We have enough evidence to conclude that the population mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day. D. We do NOT have enough evidence to conclude that the population mean egg production with artificial lighting at a 20-hour day is higher than that at a 24-hour day.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:25. An egg company is studying the effects of artificial lighting on egg production of chickens. A brood of
chicks were separated at random into two groups, both raised in windowless coops with artificial lighting. One
group followed a natural 24-hour per day light/dark cycle while the second group experienced an accelerated 20-
hour day. The weekly egg productions for the two groups are summarized in the table below. Conduct a
hypothesis test to determine whether egg production is higher with a 20-hour day as compared to a 24-hour day.
The level of significance is 1%. Wnat is the conclusion of the hypothesis test?
Sample size
Mean number of eggs Standard Deviation
24-hour day (Group 2)
20-hour day (Group 1)
45
5.2
1.8
42
6.1
2.9
A. We have enough evidence to conclude that the sample mean egg production with artificial lighting at a
20-hour day is higher than that at a 24-hour day.
B. We do NOT have enough evidence to conclude that the sample mean egg production with artificial
lighting at a 20-hour day is higher than that at a 24-hour day.
C. We have enough evidence to conclude that the population mean egg production with artificial lighting at a
20-hour day is higher than that at a 24-hour day.
D. We do NOT have enough evidence to conclude that the population mean egg production with artificial
lighting at a 20-hour day is higher than that at a 24-hour day.
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