Question

In an experiment, 16 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby
witnesses either a helper toy push the climber up the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random
fashion. A second part of this experiment showed the climber approach the helper toy, which is not a surprising action, and then the climber approached the hinderer toy,
which is a surprising action. The amount of time the baby watched the event was recorded. The mean difference in time spent watching the climber approach the hinderer
toy versus watching the climber approach the helper toy was 1.22 seconds with a standard deviation of 1.58 seconds. Complete parts a through c.

Answer 1

The test statistic based on the information will be 2.74 and the degree of freedom is 15.

How to calculate the test statistic?

From the information given, the test statistic will be:

= 1.71/(1.71/✓16)

= 2.74

The degree of freedom will be:

= n - 1

= 16 - 1

= 15

In conclusion, there's no sufficient evidence to show that babies have the ability to assess surprising behavior.

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