Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Helper or hinderer An investigation reported in the November 2007 issue of Nature (Hamlin, Wynn, and Bloom) aimed at assessing whether infants take into account

Helper or hinderer

An investigation reported in the November 2007 issue ofNature(Hamlin, Wynn, and Bloom) aimed at assessing whether infants take into account an individual's actions towards others in evaluating that individual as appealing or aversive, perhaps laying the foundation for social interaction. In one component of the study, each of sixteen 10-month-old healthy infants (in New England) were shown a "climber" character (a piece of wood with "Google" eyes glued onto it) that could not make it up a hill in two tries. Then they were shown two scenarios for the climber's next try, one where the climber was pushed to the top of the hill by another character ("helper") and one where the climber was pushed back down the hill by another character ("hinderer"). Each infant was alternately shown these two scenarios many times. Then the child was presented with both pieces of wood (the "helper" and the "hinderer") and asked to pick one to play with. In the study 14 out of the 16 babies picked the "helper" toy. Does this provide evidence that such 10-month-old infants have agenuine preferencefor the helper toy? Use anappletto generate the null distribution of the proportion of "successes." Determine the standardized statistic for the observed sample proportion of "successes." Show your work.(Round answer to 0 decimal places, e.g. 5275.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Mathematical Analysis For Quantitative Finance

Authors: Daniele Ritelli, Giulia Spaletta

1st Edition

1351245104, 9781351245104

More Books

Students also viewed these Mathematics questions