Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Do children less than a year old recognize the difference between naughty and nice and show show a preference for nice over naughty? In a study reported in the November 2007 issue of Nature, researchers investigated whether infants take into account an individual's actions toward others in evaluating that individual as appealing or aversive. In one component of the study, 10-month-old infants 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 alternately 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"). The infant was alternately shown these two scenarios several times. Then the child was presented with both pieces of wood (the helper and the hinderer) and asked to pick one to play with. The researchers found that 14 of the 16 infants chose the helper over the hinderer.
(a) If infants really do not show any preference for either type of toy, what is the probability 14 or more of the infants would have chosen the helper toy? What does this suggest about infants making their selections based only on random chance?
(b) Suppose the study had only 8 infants, and 7 out of the 8 chose the helper toy. Does this result constitute more than, less than, or the same amount of evidence as part (a) that infants show a preference for the helper toy? Explain.
Draw a column chart from grade book. Use column illustrating students' names; select one of the tests to plot.
Tim has two more problems to solve on his test, but he doesn't know how long it will take to finish them. He assigns mutually irrelevant normal distributions to the times
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
Write a brief summary of the distribution of the area of homes.
NCAA Football Coach Salaries: Given below are annual salaries for simple random sample of NCAA football coaches (Based on data from USA). How do mean and median change if highest salary is omitted?
What is the probability that: The amount requested is $80,000 or more?
Select two non-parametric tests utilized in business decision making? Give an example of each test with an appropriate business situation.
What is the maximum error of estimate for p ?
during a gas leak it is known that there is a 25 risk of developing breathing problems. in the midst of a recent gas
Consider a Poisson probability distribution with 2 as the average number of occurrences per time period. Write the appropriate Poisson probability function.
From a lot of 10 missiles, 4 are selected at random and fired. If the lot contains 3 defective missiles that will not fire, what is the probability that 3 will fire?
A personnel manager has a computer-generated list of all employees that indicates that 70 percent are full-time employees, 20 percent are part-time employees, and 10 percent are furloughed or laid-off employees.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd