Babies Learn Early Who They Can Trust: A study 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 6.11. Test at a 5% level to see if there is evidence that babies are more likely to imitate those they consider reliable. TABLE 6.11 Babies imitate those they trust Imitated Did not imitate Reliable 18 12 Unreliable 10 20 1) Hypothesis statement? 2) standard error? 3) z score? 4) p value? 5) accept or reject the null?
Babies Learn Early Who They Can Trust: A study 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 6.11. Test at a 5% level to see if there is evidence that babies are more likely to imitate those they consider reliable.
TABLE 6.11
Babies imitate those they trust
Imitated Did not imitate
Reliable 18 12
Unreliable 10 20
1) Hypothesis statement?
2) standard error?
3) z score?
4) p value?
5) accept or reject the null?
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