Identify the null and alternative hypotheses. Choose the correct answer below. OA. Ho: HL-Hs #0 HA:HL-Hs=0 OB. Ho: HL-Hs = 0 HA:HL-HS >0 OC. Ho: HL-Hs = 0 HA: HL-Hs #0 OD. Ho: HL-Hs = 0 HA: HL-HS <0 Compute the t-statistic. t= (Round to two decimal places as needed.) Find the P-value. The P-value is (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is sufficient evidence that bowl size changes portion size. OB. Reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size. O C. Fail to reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size. O D. Fail to reject the null hypothesis. There is sufficient evidence that bowl size changes portion size.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Researchers investigated how the size of a bowl affects how much ice cream people tend to scoop when serving themselves. At an​ "ice cream​ social," people were randomly given either a 17 fluid oz​ (503 mL) or a 34 fluid oz​ (1006 mL) bowl​ (both large enough that they would not be filled to​ capacity.) They were then invited to scoop as much ice cream as they liked. Did the bowl size change the selected portion​ size? The summaries are shown. Test an appropriate hypothesis and state your conclusions. For assumptions and conditions that you cannot​ test, you may assume that they are sufficiently satisfied to proceed.​ (Assume a significance level of
0.10​.)

 

 

Small Bowl Large Bowl
n
25
n
25
FINS
y
5.13 oz
1.71 oz
CIS
y
6.77 oz
2.86 oz
O
Transcribed Image Text:Small Bowl Large Bowl n 25 n 25 FINS y 5.13 oz 1.71 oz CIS y 6.77 oz 2.86 oz O
Identify the null and alternative hypotheses. Choose the correct answer below.
O A. Ho: HL-Hs #0
HA: μL -μs = 0
B. Ho: ML-Hs = 0
HA: HL-HS >0
OC. Ho: PL - µs = 0
HA:HL-Hs #0
D. Ho: μL μs = 0
HA:HL-HS <0
Compute the t-statistic.
t=
(Round to two decimal places as needed.)
Find the P-value.
The P-value is
(Round to three decimal places as needed.)
State the conclusion. Choose the correct answer below.
A. Reject the null hypothesis. There is sufficient evidence that bowl size changes portion size.
B. Reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size.
C.
Fail to reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size.
D. Fail to reject the null hypothesis. There is sufficient evidence that bowl size changes portion size.
Transcribed Image Text:Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: HL-Hs #0 HA: μL -μs = 0 B. Ho: ML-Hs = 0 HA: HL-HS >0 OC. Ho: PL - µs = 0 HA:HL-Hs #0 D. Ho: μL μs = 0 HA:HL-HS <0 Compute the t-statistic. t= (Round to two decimal places as needed.) Find the P-value. The P-value is (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. A. Reject the null hypothesis. There is sufficient evidence that bowl size changes portion size. B. Reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size. C. Fail to reject the null hypothesis. There is not sufficient evidence that bowl size changes portion size. D. Fail to reject the null hypothesis. There is sufficient evidence that bowl size changes portion size.
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