A father is visiting a Speech Language Pathologist Assistant (SLPA) and discusses his daughter’s therapy plan. The SLPA suggests that incorporating American Sign Language (ASL) is effective in producing speech, and demonstrates to be more effective for girls. Which of the following tests did the SLPA conduct? a. Independent-Measures t-test (between-subjects) b. ANOVA c. Two-Factor ANOVA d. Repeated-Measures t-test (within-subjects)
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- What is meant by the sample space of an experiment?Dr. Cudaback examined the number of copies of the amyloid beta gene in five aged APOE 4 mice. What is the: a. response variable = b. type of variable = c. n=Do well-rounded people get fewer colds? A study on the Chronicle of Higher Education was conducted by scientist at Carnegie Mellon University, the University of Pittsburgh and the University of Virginia. They found that people who have only a few social outlets get more colds than those who are involved in a variety of social activities. Suppose that of the 276 healthy men and women tested, n1=96 had only a few social outlets and n2=105 were busy with six or more activities. When these people were exposed to a cold virus, the following results were observed: Construct a 99% confidence interval for the difference in the two population proportions.
- if there were something genetic that made people simultaneously more suceptible to both smoking and lung cancer, that would be an instance of A. Causation B. Common sense C. The placebo effect D) confoundingAronson and Mills (1959) conducted an experiment to see whether people's liking for a group is influenced by the severity of initiation. They reasoned that when people willingly undergo a severe initiation to become members of a group, they are motivated to think that the group membership must be worthwhile. Otherwise, they would experience cognitive dissonance: Why put up with severe initiation for the sake of a group membership that is worthless? In their experiment, participants were randomly assigned to one of three treatment groups: Group 1 (control) had no initiation. Group 2 (mild) had a mildly embarrassing initiation (reading words related to sex out loud). Group 3 (severe) had a severely embarrassing initiation (reading sexually explicit words and obscene words out loud). After the initiation, each person listened to a standard tape-recorded discussion among the group that they would now supposedly be invited to join; this was made up made to be as dull and banal as possible.…A Doctor is interested in the proportion of Lyon county residents who were infected with covid-19 virus. There were 425 covid-19 cases reported among 25474 residents in Lyon county. a. What is a statistics in this experiment? b. What variables should pollster collect in this experiment?
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- The head of the quality control department at a printing company would like to carry out an experiment to determine which of three different glues results in the greatest binding strength. Although they are not of interest in the current investigation, other factors thought to affect binding strength are the number of pages in the book and whether the book is being bound as a paperback or a hardback.a. What is the response variable in this experiment?b. What explanatory variable will determine the experimental conditions?c. What two extraneous variables are mentioned in the problem description? Arethere other extraneous variables that should be considered?A school psychologist is interested in whether going to nature school, where children spend their day outside working with nature, versus public school has an effect on children's empathy toward their peers. A national survey of public schools found that, on a scale from 1 to 10, the average empathy among all children in public schools was 5 (u = 5.00). The school psychologist randomly selects 4 children from a nature school, measures their empathy toward their peers, and obtains the following scores: 10, 9, 10, 7 Using the appropriate hypothesis test and the six steps of hypothesis testing, see what the school psychologist should conclude about the difference in empathy between children who attend nature school versus children who attend public school. 1. What is the appropriate test to use ? 2. List the test's assumptions You do NOT have to test the assumptions. 3. What are the null and alternative hypotheses ? 4. Construct a sampling distribution of means representing the null…A school psychologist is interested in whether going to nature school, where children spend their day outside working with nature, versus public school has an effect on children's empathy toward their peers. A national survey of public schools found that, on a scale from 1 to 10, the average empathy among all children in public schools was 5 (u = 5.00). The school psychologist randomly selects 4 children from a nature school, measures their empathy toward their peers, and obtains the following scores: 10, 9, 10, 7 Using the appropriate hypothesis test and the six steps of hypothesis testing, see what the school psychologist should conclude about the difference in empathy between children who attend nature school versus children who attend public school. 3. What are the null and alternative hypotheses ? 4. Construct a sampling distribution of means representing the null hypothesis. Specify the sampling distribution's mean and standard error 5. Using a two-tailed alpha of .05 (a=0.5)…