Suppose that you conducted a study of 150 elementary school students. You wanted to fin out if they were homeschooling, hybrid learning, or full-time schooling in Spring 2020 and Fa

Q: a research design where each person is tested in two different conditions is called what?

A: Between-subjects (or between-groups) study design: different people test each condition, so that…

Q: The director of computer technology in Emerson School District wants to gather information about the…

A: a) The given research can be classified as Qualitative as it considers an in-depth analysis of…

Q: The Ministry of Health reported the number of reported cases of all stages of syphilis for two…

A: Given information- We have given the number of reported cases of syphilis for two regions for the…

Q: A cognitive psychologist is interested in the effect that sleep has on daily stress levels. To…

A: The participants are split into two equal groups. Let the first group be the one who gets less than…

Q: According to a Gallup survey two years ago, 32% of American households use a computer or online…

A: From the provided information, Sample size (n) = 85 Sample proportion (p̂) = 0.36 Level of…

Q: medical researchers knew from previous studies that in the past, about 39% of all men between the…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: sity Heart Transplant Study was conducted to determine whether an experimental heart transplant…

A: Given:1).The total people who were in treatment group=69The number of people who were alive in the…

Q: A local government official observes an increase in the number of individuals with cardiovascular…

A: Given data is0.5,0.7,0.9,1.1,1.2,1.3,1.4,2.0,2.3,2.4,2.7,3.0

Q: A small ice cream parlor has had great success over the past several years and is interested in…

A: Given information: Number of customers randomly selected in the sample, n = 56 Number of customers…

Q: Suppose you try to conduct a presidential approval poll of 5,000 likely u.s voters you know that 25%…

A: Given Total number of voters=5000

Q: A cohort study was conducted over five years among 200 trial attorneys and general practice…

A: To express the magnitude of association between the lawers exposed to heart disease and not exposed…

Q: A researcher would like to use a factorial study to compare two programs designed to help people…

A: In a factorial design, there can be several factors. These factors can be classified as: 1…

Q: A rodentologist investigating various aspects of the aging process wanted to see whether staying…

A: We perform ANOVA using the step by step procedure in excel as below: Enter the data into excel…

Q: Suppose that you are interested in determining whether the advice given by a physician during a…

A: (a)   Obtain the value of true difference in the population proportion p1–p2.   The value of true…

Q: A study published in the the journal Public Library of Science took 134 people, who were at risk of…

A:

Q: A group of virologists conducted a medical study to investigate whether cow's milk makes a…

A: Given Information: Cow's milk: Sample size n1=1000 Out of which x1=110 volunteers developed…

Q: In a survey of 70 business firms, it was found that 45 were planning to expand their capacities next…

A: Given data number of success , x= 45 sample size, n =70 population proportion,p=…

Q: A medical study followed 675 cancer patients who received either the new drug lafent or a standard…

A: Given that there are 675 cancer patients who received either the new drug or a standard chemotherapy…

Q: Forty new employees hired at the same time are randomly divided into two groups. One group receives…

A: Experimental Study: If some treatments are applied on the individuals in order to observe the…

Q: How can you make sure your factorial design is well designed?

A: Factorial designed is used to determine the effects of multiple levels on a response.

Q: Suppose that a sample of 1200 people in the USA revealed that 125 of them are left- handed. Then the…

A: The population represents the total number of people considered such that the result of a sample…

Q: A tamoxifen study claims that a combination of chemotherapy and the hormone therapy tamoxifen is…

A: In this study, which is the control group? The control group in a study is the one which do not…

Q: 5. A clinical researcher is conducting a study using an FDA approved medication that helps patients…

A: Given that  The researcher obtain a sample size (n)= 350 Believe that medication works on 75% of the…

Q: A student researcher was surprised to learn that the 2017 NCAA Student-Athlete Substance Use Survey…

A: Since the question to be answered is not specified, we'll be answering only the first question.…

Q: University is considering changing the email system that they currently use. Since there are…

A: We have to find hypothesis..

Q: The University is considering changing the email system that they currently use. Since there are…

A: Solution: No. of users of current system: n1 = 131 No. of users that like the current system: x1 =…

Q: A random sample of 750 registered voters in Phoenix is asked if they favor the use of oxygenated…

A:

Q: For a telephone survey, a marketing research group needs to contact at least 600 wives, 480…

A:

Q: The grades of a sample of 9 students on a prelim exam (x) and on the midterm exam (y) are shown in…

A: Let X denote the prelim exam Let Y denote the midterm exam Calculation:

Q: The University is considering changing the email system that they currently use. Since there are…

A: We have to find null and alternative hypothesis for given data..

Q: Following the model above, if 128 different people each observe one randomly chosen groups of four…

A:

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot jJust give Tamiflu to…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The following table shows the results of a recent health survey of 400 patients from hospitals of…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A researcher is curious to see if the amount of time spent on social media influences how often…

A: Since, it is not mentioned which question to be answered, we'll be answering the first question…

Q: who is more likely to attend both activities?

A: here use concept of independent event if A and B independent events then p(A and B ) = p(A).p(B)

Q: A sociologist sampled 200 people who work in computer-related jobs, and found that 42 of them have…

A:

Q: We want to know if students with bronchitis at 5 years have more cough symptoms when they grow up.…

A: Answer:-  Number of students with cough symptoms at a age 12 with Bronchitis at age 5 =32 out of 290…

Q: Suppose that 73.2% of all adults with type 2 diabetes also suffer from hypertension. After…

A: From the provided information, Sample size (n) = 1000 Out of which 718 suffered from hypertension…

Q: 4. Which kind of study is generally more effective at blocking confounders?

A: Concept of confounding is important in statistical analysis.

Q: Suppose that insurance companies did a survey. They randomly surveyed 450 drivers and found that 300…

A: Part a:          x = 300         n = 450         p' = 300/450 = 0.6667   Part b:  X is the number of…

Q: The Stanford University Heart Transplant Study (1974) was conducted to determine whether an…

A: Given information:   Treatment Control Total Alive 24 4 28 Dead 45 30 75 Total 69 34 103

Q: Suppose you try to conduct a presidential approval poll of 5,000 likely U.S. voters. You know that…

A: a) Given that there are 5000 voters in U.S. 29% of the voters are registered as Republican. The…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Suppose you try to conduct a presidential approval poll of 10,000 likely U.S. voters. You know that…

A: Here given : 10,000 voters approval poll. 44% :independent  party  28%: reform Party  23%: green…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: Given Information: 32% of people who get the flu experience nausea. p = 0.32 Sample size (n) = 2254…

Q: The University is considering changing the email system that they currently use. Since there are…

A: Formula   Test statistic

Q: A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 95…

A:

Q: Recent research findings have shown that older people who practice ballroom dancing are 77% less…

A: Two different samples, we need to use independent samples t test.