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(b) Give the test statistic and the p-value. Round your answers to three decimal places. test statistici p-value = Mi

(b) Give the test statistic and the p-value. Round your answers to three decimal places. test statistici p-value = Mi

MATLAB: An Introduction with Applications
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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A study¹ indicates that babies may choose not to learn from someone they don't trust. A group of 60 babies, aged 13 to 16 months, were randomly divided into two groups. Each baby watched an adult express great excitement while looking into a box. The babies were then shown the box and it either had a toy in it (the adult could be trusted) or it was empty (the adult was not reliable.) The same adult then turned on a push-on light with her forehead, and the number of babies who imitated the adult's behavior by doing the same thing was counted. The results are in Table 1. Test at a 5 % level to see if there is evidence that babies are more likely to imitate those they consider reliable. Ho: 1 (b) Give the test statistic and the p-value. test statistic = Reliable p-value = Unreliable μ i ¹Wood, J., "Babies Learn Early Who They Can Trust," Psych-Central, http://psychcentral.com/news/2011/12/07/babies-learn-early- who-they-can-trust/32278.html. Round your answers to three decimal places. (a) State the null and alternative hypotheses. Use subscripts 1 for babies imitating an adult considered reliable and 2 for babies imitating an adult considered unreliable. vs Ha: :: I₂ Imitated 1 18 10 Table 1 Babies imitate those they trust :: p 1₂ Did not imitate P₁ 12 p 20 ^ P₂ P₁ :: P2 r :- p
Transcribed Image Text:A study¹ indicates that babies may choose not to learn from someone they don't trust. A group of 60 babies, aged 13 to 16 months, were randomly divided into two groups. Each baby watched an adult express great excitement while looking into a box. The babies were then shown the box and it either had a toy in it (the adult could be trusted) or it was empty (the adult was not reliable.) The same adult then turned on a push-on light with her forehead, and the number of babies who imitated the adult's behavior by doing the same thing was counted. The results are in Table 1. Test at a 5 % level to see if there is evidence that babies are more likely to imitate those they consider reliable. Ho: 1 (b) Give the test statistic and the p-value. test statistic = Reliable p-value = Unreliable μ i ¹Wood, J., "Babies Learn Early Who They Can Trust," Psych-Central, http://psychcentral.com/news/2011/12/07/babies-learn-early- who-they-can-trust/32278.html. Round your answers to three decimal places. (a) State the null and alternative hypotheses. Use subscripts 1 for babies imitating an adult considered reliable and 2 for babies imitating an adult considered unreliable. vs Ha: :: I₂ Imitated 1 18 10 Table 1 Babies imitate those they trust :: p 1₂ Did not imitate P₁ 12 p 20 ^ P₂ P₁ :: P2 r :- p
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