Answer the questions to get correct answers after you had read the passage on Compassionate Dog. How Compassionate Is Your Dog? Can dogs recognize when their owner is in distress? In one study, 34 dog-owner pairs wererecruited to participate in an experiment? in which the owner sat behind a magnetic door that the dog could push open. The pairs wererandomly assigned to one of two conditions: in the distress condition, the owner said help in a distressed tone every 15 seconds andmade crying sounds between speaking. In the control condition, the owner said help in a neutral tone and hummed between speaking.The vocalizations between the two groups were at the same volume. Let Group 1 be the distress condition and Group 2 be the controlcondition.7Sanford E, Burt E, Meyers-Manor J, "Timmy's in the well: Empathy and prosocial helping in dogs," Learning and Behavior, 46(4), pp374-386, December 2018. (c) Another part of the study looked only at the dogs that did open the door, and tested whether the mean time to open the doorwas smaller for dogs in the distress condition than for dogs in the control condition (meaning that dogs reacted faster whenowners were distressed.) State the null and alternative hypotheses for this test.Ho:eTextbook and MediaH:: μ:: F2vs Ha:4p1₂:: pAP₁:: P₁:: P2AP2 ⠀r::p:: I₁(d) For the test in part (c), the evidence from the sample was strong enough to support the alternative hypothesis. Explain whatthis means in terms of dogs and owners.On average, dogs react faster when the owner uses a neutral voice.No dogs ever open any doors.On average, dogs react faster when the owner is distressed.Whether or not the owner is in distress does not seem to make a difference in whether the dog reacts faster.

c) Suppose µ1, µ2 are the true mean times of dogs opening the door in distress condition and in…

Answered: (c) Another part of the study looked…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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4) A medical researcher is interested in determining if there is a relationship between adults over 50 who exercise regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. Test the claim that regular exercise and low, moderate, and high blood pressure are independent. Use alpha= 0.01 Blood pressure: Reg exercise: low 35, moderate 62, high 25 No reg. Exercise: low 21, moderate 65, high 28
An experiment to determine if a migraine medication decreases a person's average number of monthly migraines is performed on 400 people who report they have several migraines a month. Researchers randomly assigned 200 people to the treatment group and 200 people to the control group. After the study, the researchers determined that 48 of the subjects in the treatment group and 28 of the subjects in the control group average fewer migraines per month. The data from the two groups are resampled 150 times, and the table shows the distribution of the differences of the proportions for the reconfigured treatment and control groups.

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