A student believes that physical science professors are more authoritarian than social science professors. She conducts an experiment in which six physics, six psychology, and six sociology professors are randomly selected and given a questionnaire measuring authoritarianism. The results are shown here. The higher the score is, the more authoritarian is the individual. What do you conclude, using α= 0.05?

Q: Suppose it is claimed that the proportion of OSU students who belong to a fraternity or sorority is…

A: Given: Test is two-tailed and z = 0.40. The required P-value can be obtained by using the standard…

Q: are conducting a study to see if the proportion of voters who prefer Candidate A is significantly…

A: In hypothesis testing, a null hypothesis can be defined as the hypothesis of no difference or…

Q: A psychologist was interested in the effects of time of day on critical thinking. Participants were…

A: Solution: It is given that a psychologist was interested in the effects of time of day on critical…

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

A:

Q: An automobile manufacturer is considering using robots for part of its assembly process. Converting…

A: a) The given information states that an automobile manufacturer is assuming robots for part of its…

Q: A certain university has decided to introduce the use of plus and minus with letter grades, as long…

A: Given info: A certain university has decided to introduce the use of plus and minus with letter…

Q: Please help me only for the p-value on part (c), thank you!

A: (C)From the given information,Null and alternative hypothesis is,H0 : P=0.10Ha : p>0.10The…

Q: A pharmaceutical company wants to test whether Aspirin 1 is as effective as Aspirin 2. A random…

A: GivenAspirin 1                     Aspirin 2n1=400                     n2=350x1=260…

Q: Given a critical t score of -2.33 and t observed being -2.01, the decision you should make is…

A: It is given that the critical t score is -2.33 and the observed t value is -2.01.

Q: Derrick surveyed a random sample of 100 students from his middle school to learn more about what…

A:

Q: ​A repeated-measures experiment compares three treatment conditions with a sample of n = 10…

A: Given, No of treatments k = 3 No of participants n = 10

Q: According to a University Center for Logistics Management, 11% of all merchandise sold in the United…

A:

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: Given: n1 = 200 n2 = 200 P1 = 29200 = 0.145 P2 = 24200 = 0.12 Formula used: Z-test =…

Q: A simple clinical trial was performed to compare two medicines. A total of 20 patients were…

A: From the provided information, Sample size (n1) = 10 and n2 = 10

Q: analyst tested the null hypothesis µ ≥ 30 against the alternative hypothesis that µ  0.05 0.05 0.07…

A: Here we want to know level of significance to reject the null hypothesis.

Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: Given,n=273x=63p^=xnp^=63273=0.2308

Q: 10. In a certain senior high school, a study found that 972 out that 1,100 Grade 12 students use…

A: 1. C 2. A 3. A 4. C 5. C 6. A 7. B

Q: A law enforcement agent believes that 80% of the drivers stopped on Saturday nights for speeding are…

A:

Q: In a study of a group of women science majors who remained in their profession and a group who left…

A: Given that   x1 = 3.09 x2 = 2.92 σ1 = 0.78σ2 = 0.78 n1 = 107n2 = 222

Q: In the 1970s a study was conducted in Philadelphia in which 500 cases were randomly assigned to…

A: a) The p-value is 0.0761. Thus, the probability of obtaining a test statistic value at least as…

Q: A researcher thinks that watching violent televisions increases aggressive behavior in children. To…

A: Given 48 children 3 groups

Q: In a random sample of 80 Americans, 55% wished that they were rich.  In a random sample of 100…

A: Given : p1 = 0.55p2 = 0.48n1 = 80n2 = 100 p1 = x1n10.55 = x180x1 = 44 p2 = x2n20.48 = x2100x2 = 48

Q: 3. For a population with µ = 40 and o = 8, what is the z-score corresponding to X = 34?

A:

Q: -For a population with µu = 70 and o = 8, what is the z-score corresponding to X = 82?

A:

Q: In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s,…

A: The random variable dreaming in color follows binomial distribution. The sample size is 113. The…

Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: Given Test that more than 30℅ of the teen girls smoke to stay thin

Q: ckerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or…

A: a.

Q: A psychologist wants to know whether viewing more violent TV shows affects aggressive behavior. 12…

A: We have given that data  Condition 1 5 14 6 8 7 6 Condition 2 12 14 14 8 15 9   Data is…

Q: An independent-measures study is analyzed using the appropriate t-test, and the APA summary is t(56)…

A: Introduction: Denote μ1, μ2 as the true population means for the two groups being compared.

Q: With H1: p < 0.32, a test statistic is z = -1.23.  Use a 0.01 significance level to find the…

A: Given that,null,  Ho:p=0.32  alternate,  H1: p&lt;0.32level of significance, alpha = 0.01

Q: If a researcher randomly assigns subjects in a taste-testing study to Group 1 (Coke) or to Group 2…

A: Solution according to the guidelines we solve  first question only

Q: Suppose a 95% CI for the proportion of adults that regularly attend a tae kwon do class at least…

A: From the provided information, Confidence level = 95% The confidence interval = (0.2534, 0.3894)

Q: Could you help me to solve the Multiple choice question? Thank you.

A: Introduction: In an experimental study, a factor is an independent variable, the levels of which are…

Q: In a study to estimate the proportion of residents in a certain city and its suburbs who favor the…

A: There are two independent samples which are urban and suburban. We have to test whether there is a…

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: given  P0 =0.37 n=170

Q: A newspaper reported the results of a survey on the planning habits of men and women. In response to…

A: The level of significance is 0.01.

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: As per our guidelines, we are allowed to answer up-to three sub-parts only. Here part a contains…

Q: Suppose a researcher wants to test whether the proportion of people that reflect a certain…

A:

Q: n a survey of families in which both parents work, one of the questions asked was, “Have you refused…

A: Given: n1=200n2=200p^1=0.29p^2=0.24α=0.05

Q: If a treatment is expected to increase scores in a population with µ = 35, then the null hypothesis…

A: From the provided information, A treatment is expected to increase scores in a population with µ =…

Q: ssume the obtained value of the appropriate statistic is t obt = -2.431, using α = 0.05, 2 tail, and…

A:

Q: A polling company conducted a hypothesis test to see if people are happy with the government, and…

A: Given : A polling company conducted a hypothesis test to see if people are happy with the…

Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…

A: a) Given P=0.15 Since distribution is approximate normal to find n it should satisfy below condition…

Q: A researcher examined the folklore that women can predict the sex of their unborn child better than…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The results of a random sample of children with pain from musculoskeletal injuries treated wit…

A: The following cross tabulation have been provided. The row and column total have been calculated and…

Q: A political pollster conducted a study to determine political party loyalty. To do so, he selected a…

A: Given Information : A political pollster conducted a study to determine political party loyalty. To…

Q: A fish biologist hypothesizes that the proportion of fish in Lake Ontario that are Black Carp has…

A:

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: It is a two-tailed test.

Q: An independent-measures experiment with three treatment conditions has a sample of n = 10 scores in…

A: An independent-measures experiment with three treatment conditions has a sample of n = 10 scores in…

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

A: Solution: Let X be number of firms announced one or more acquisitions during the year 2000 and n be…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.