2. Independent Sample T-Test: A researcher is interested in the anxiety levels ofindividuals who get in-home counseling vs those who get out-of-home counseling. Theresearcher measures participant anxiety scores by using questionnaire measured on a scalefrom 1-10. The researcher manages to gather a sample of 40 participants. Use a = 0.05In-Home Out-of-Home1513433146514436777886777554652436754387 In this test you will conduct and interpret T-tests using hypothesis testing and the SPSSprogram.Students will follow the hypothesis testing steps for each problem. They will compute theproblem using the SPSS program. They will write the results in appropriate APA format andinterpret the results. Steps of hypothesis testing will be typed out in a word document, as weas a copy and paste of the SPSS output.For the following problems, you will:Do all steps of hypothesis testingO Write out the hypothesesOWrite out the steps you would do to calculate tOChoose the t-cutoff scoreOCalculate the t-statistic using the computer program SPSS, include effect sizeWrite the t-statistic using proper APA formatDecide whether or not you would reject the null hypothesis●OInterpret this resultBe sure to include a copy of the SPSS output in the word document

Hypotheses: Null Hypothesis: H0: There is no difference in the mean anxiety levels between in-home…

Answered: 2. Independent Sample T-Test: A…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
Find level of significance for 95% confidence level.
why are we using the number of events=19 for the sample proportion part of the equation, instead of the actual sample proportion=0.19?
A study compared the felt intensity of unrequited love among three groups - individuals who were currently experiencing unrequited love, those who had previously experienced unrequited love and described their experiences retrospectively, and those who had never experienced unrequited love but described how they thought they would feel if they were to experience it. The results of the study are summarized in the accompanying table. Determine the significance of the difference among groups, using the 5% level. N 40 40 40 M 3.5 3.3 3.7 S2 5.3 5.8 4.8 1. What is th null hyp? 2.The comparison distribution will be an F distribution with df= ? and df=? 3.Determine the cutoff sample score on the comparison distribution at which the null hypothesis should be rejected for the data. At 0.05 the cutoff for F=? 4. Determine the sample's score on the comparison distribution for the data. F=?
Perform a statistical analysis/test of hypothesis, showing all the steps in hypothesis testing.
You want to test whether a blood pressure medication actually works. You give it to a group of n = 30 patients. You get another group of n=25 patients and give them a placebo. You want to compare the two groups to see whether they have a mean difference in blood pressure. What kind of hypothesis test should you do? One-Sample z-test Independent-Samples t-test Related-Samples t-test One-Sample t-test
Textbook question for practise - A behavioural psychologist has developed a cognitive-behavioural therapy (CBT) technique modified from classic systematic desensitization to reduce her patients’ phobia of spiders. She decides to test the effectiveness of her new therapy approach by selecting ten patients at random to undergo the treatment for 3 months. The patients were asked to rate how much fear they feel/experience when in the presence of a spider/spiders using a scale from 0 (no fear at all) to 100 (extreme panic and fear). They were tested before and after the therapy. The ratings for each patient are as follows: For this question, be sure to do the following: ▪ State the statistical hypotheses (using the appropriate notation). ▪ Indicate whether the research hypothesis is non-directional or directional (and how you know). ▪ Set the decision rules, which will include: o State alpha - 0.05% o Compute the degrees of freedom o Providing the critical value for the test statistic…
What type of study is this? A first-year university unit wanted to give option of online teaching to determine whether online teaching improved learning outcomes. Students were allowed to enrol into online or on-campus classes. Grades at the end of semester were compared. Select one: O Experimental O Something else O Observational
Salma claimed that the gas price in Blue Park neighborhood (mean of $3.65) is higher than that in Green Spring (mean of $3.59). She obtained the t-value of 2.223 after calculating data from 6 gas stations in Blue Park and 5 gas stations in Green Spring. Use the chart below and determine if Salma's claim is supported! Table 10-3. Critical values of "t" significance level p= 0.05 significance level p= 0.01 TP 1 12.706 63.657 2 4.303 9.925 3 3.182 5.841 2.776 4.604 5 2.571 4.032 6 2.447 3.707 7 2.365 3.499 2.306 3.355 9 2.262 3.250 10 2.228 3.169 11 2.201 3.106 Copy the following into your text box, fill in the blanks, and answer the questions A. The degree of freedom is: B. The t-calculated value is: and the t-critical value is : C. Comparison: t-calc t-crit (answer with ()) D. Is the null hypothesis accepted or rejected? Explain how you determined that! Also, explain what it means to reject or accept the hypothesis! E. Explain if Salma's claim is supported based on your t-value…
Anxiety when taking math tests is a common problem. If I want to study this issue, which of the following describes the best way to find out the proportion of students who suffer from math anxiety? O Select students who have scored poorly in math classes at CCBC. Poll students as they enter campus on a randomly selected day. Talk to students randomly pulled from the list of all students. Interview students who have finals on the first day of finals week.
Pls help ASAP. Pls show all work.
study is designed to investigate whether there is a difference in response to various treatments in patients with rheumatoid arthritis. The outcome is patient's self-reported effect of treatment. The data are shown on the next page. Is there a significant difference in effect of treatment? Hint: Are severity of symptoms and treatment independent? Run the test at a 5% level of significance. Demonstrate the five steps for hypothesis testing and draw a conclusion based on your results. Remember to determine the p- value, if relevant. No Effect Symptoms Total Symptoms Worsened Improved Treatment 1 22 14 14 50 Treatment 2 14 15 21 50 Treatment 3 9 12 29 50

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