In an experiment, 18 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 1.09 seconds with a standard deviation of 1.86 seconds. Complete parts a through C. (a) State the null and alternative hypotheses to determine if babies tend to look at the hinderer toy longer than the helper toy. Let Hd = Hninderer – Helper where Mhinderer is the population mean time babies spend watching the climber approach the hinderer toy and Whelper is the population mean time babies spend watching the climber approach the helper toy. B. O A. Ho:Hd > 0 Hy: Md = 0 Ho:Hd < 0 H:Hd = 0 O C. Ho:Hd = 0 H:Hd70 F. Ho: Hd = 0 H:Hd > 0 D. Hoild = = 0 E. Hoid70 H:Hd = 0 Hy: 4d < 0 (b) Assuming the differences are normally distributed with no outliers, test if the difference in the amount of time the baby will watch the hinderer toy versus the helper toy is greater than 0 at the 0.01 level of significance. Find the test statistic for this hypothesis test. 2.49 (Round to two decimal places as needed.) Determine the P-value for this hypothesis test. (Round to three decimal places as needed.)
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more