A study on the effects of color on easing test anxiety compared anxiety test scores of participants who completed a test printed on either soft yellow paper or harsh green paper. The scores for the 10 participants who completed the yellow and the 10 participants who completed it on the green paper are below (Table 5). Using an alpha level of .05, do participants who use the yellow paper report lower test anxiety than those who wrote it on the harsh green paper?   Table 5. Anxiety scores

Q: caffeinated coffee intake and clinical depression in women. Using the provided output, what are the…

A: From the given data  number of rows = 2 number of columns = 4

Q: You ran an experiment investigating the caloric content of Cheerios and Honey Nut Cheerios. The data…

A:

Q: A coworker claims that Skittles candy contains equal quantities of each color (purple, green,…

A: The question is about categorical data analysis.Given :Randomly selected no. of " S " candy ( n ) =…

Q: You assessed depression score of 50 college students using a 7-point rating scale (1 = not depressed…

A: To explain the possible measure of central tendency for the depression score.

Q: A well-known psychologist has established what she calls her Generalized Anxiety (GA) scale. The GA…

A: Number of adults =11Regression equation is

Q: he DASS-21 questionnaire is a validated measure of depression, anxiety, and stress. For the general…

A: Given that the mean for the anxiety for the population is 4.2 As it scales from the questions 0 to…

Q: Researchers are testing whether a new treatment significantly changes the happiness of a group as…

A: The given data is measure of happiness for both groups after a month of receiving treatment.

Q: alizes in adolescent anxiety and has been collecting information about the frequency of all clients'…

A: Confidence Interval Z 90% 1.645 95% 1.960 99% 2.576 The z-score = 1.6 The z-score is…

Q: Dr. Y collected data on local people’s viewpoints about the building of the 2020 Olympic venue in…

A: Solution : Given : Local people’s viewpoints about the building of the 2020 Olympic venue in Tokyo,…

Q: In Dr. Potter’s study of ‘Objective Increases in Fear Based on Type of Haunting’, he reported that…

A: a. It is given that, ghosts earned a z-score of 0.93, spirits earned a z-score of -0.75, and…

Q: The data below are from an experiment comparing three different treatment conditions. What test…

A: Let μ1,μ2,μ3 denotes the means of the three different treatment conditions. Since the means of more…

Q: Is the proportion of wildfires caused by humans in the south lower than the proportion of wildfires…

A: Given : x1= 347.0 n1= 556 x2= 341.0 n2= 524 significance level =  0.05

Q: The accompanying table summarizes successes and failures when subjects used different methods when…

A: The p-value is 0.009.

Q: A food company is developing a low-calorie granola bar, and the company is interested in whether the…

A: There were 100 male and 100 female volunteers available for purposes of evaluation. Both males and…

Q: A company that sells tea and coffee claims that drinking two cups of green tea daily has been shown…

A: The Given Company that sell tea and coffee. To question would you ask to find out more about the…

Q: The results of a recent study regarding exercise and three types of illnesses are shown in the…

A: Chi square test used to check the independency between the two categorical variables. The formula of…

Q: Is the proportion of wildfires caused by humans in the south different from the proportion of…

A: GivenFor wildfires looked at in the southn1=567x1=452p1^=x1n2=452567≅0.7972For wildfires looked at…

Q: The authors of a paper on perceptions of video games carried out an experiment to determine if…

A: 7+ L 12+ l 16+L 18+L 6 8 7 10 7 7 9 9 6 9 8 6 5 5 6 9 5 7 7 7 8 9 5 6 6 5 8 8 1 8 9…

Q: group took 40 mg of ginkgo 3 times a day for 6 weeks. The 115 participants assigned to the control…

A:

Q: This was a question on my homework and I would like to know if I answered it correctly. Thank you…

A: Odds (O):The “odds” of the occurrence of an event is the ratio of the number of occurrences of the…

Q: The calculations for a factorial experiment involving four levels of factor A, three levels of…

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

Q: A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey,…

A: Given - sample size, n = 9, mean difference in score, M = 14, sum of squares of difference scores,…

Q: Cyclozocine was an alternative to methadone for treating heroin addiction. The following data came…

A: The Q-scores of the 14 sampled males, who were heroin addicts is given as: 51, 53, 43, 36, 55, 55,…

Q: A group of health conscious researchers were interested in ways to lower blood pressure.  The study…

A: It is given that there are three intervention types on post-treatment blood pressure with each of 30…

Q: A researcher conducts an independent-measures study examining how the brain chemical serotonin is…

A: A. Null and alternate hypotheses: The investigator is specifically interested to test whether the…

Q: A researcher wants to examine how a new intervention helps children learn to read. A random sample…

A: In the provided information, the one sample t-test will be used for measurement because it is used…

Q: A research study was conducted about gender differences in "sexting." The researcher believed that…

A: Solution:- from given information claim: The proportion of girls sending sexts is less than the…

Q: Comparing p-value and α value, which is the correct decision to make for this hypothesis test?  A.…

A: We want find test statistics , P-value,  decision and conc

Q: A recent study investigated whether the number of positive health behaviors (e.g., exercising,…

A: The formulas for MS regression and MS residuals are given by :…

Q: The DASS-21 questionnaire is a validated measure of depression, anxiety, and stress. For the general…

A: Hypothesis Ho: μ=4.2 vs H1: μ>4.2 test statistic=t=(x¯-μ)/s/n and df=n-1 When population…

Q: Dr. S. compared her experimental group to a control group using a t test and concluded that her t…

A: Here Dr. S. compared her experimental group to a control group using a t-test. Hence the null and…

Q: Are seatbelts effective at saving lives? We wish to examine whether or not the use of seatbelts…

A: Here we conduct Z test for two proportion.

Q: A table summarizes the success and failures when subjects used different methods (yoga, acupuncture,…

A: H0 : success is independent of the method used H1 : success is dependent on the method used

Q: A new cream was developed to reduce the irritation caused by poison ivy. To test the effectiveness,…

A: Introduction: The benefit of the comparison done in the given study is to be determined.

Q: If there is an interaction, is the interaction significant? That is, does the effect of maternal…

A: Null Hypothesis:   H0: The interaction effect is not significant.   Alternative Hypothesis:   H1:…

Q: Researchers conducted trials to investigate the effects of color on creativity. Subjects with a red…

A: Given n1=39, n2=40, sample mean x̄1=3.73, sample mean x̄2=3.14, s1=0.52, s2=0.85

Q: A teacher measured brain activity in all 60 seniors in her Statistics class in the first week of…

A: The null and alternate hypothesis are H0 : μd=0HA : μd<0 where, μd is the difference of the first…

Q: The athletic director at a large university compared the proportions of freshmen (1st year students)…

A: The hypothesis is, Null hypothesis: H0: There is no difference between proportions of freshmen and…

Q: The claim that the proportion of accidental deaths of the ederly attribute to resident falls is more…

A: Hypotheses: The null and the alternative hypotheses are,  H0:p=0.20H1:p>0.20

Q: A cognitive psychologist conducted a study of whether familiarity of words (X) predicts the time it…

A: 1. In this case, familiarity of words is the independent variable (x) and whether the time it takes…