The result of an One-Way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) was F(3, 117) = 3.827, p < .05. The corresponding effect size was η2 = .26. What can be concluded about these results?
Q: Would you expect the F-ratio of an independent-samples ANOVA using the same data to be the same,…
A: Introduction: Repeated measures ANOVA or repeated measures analysis of variance is a parametric…
Q: A researcher runs a one way ANOVA with a Between degrees of freedom = 4 and a Within degrees of…
A: a one way ANOVA with a Between degrees of freedom = 4 and a Within degrees of freedom = 74 F-ratio…
Q: A published report of a repeated-measures research study includes the following description of the…
A: Given information: The result show significant difference among the treatment condition. F(2,…
Q: Lecture(10.3a): Identify the test statistic used for the ANOVA procedure and how it is calculated.…
A: ANOVA is Analysis of variance.
Q: What is the coefficient of determination for the data above?
A: Step-by-step procedure to find the regression line using Excel: In Excel sheet, enter x and y in…
Q: Pilates is a popular set of exercises for the treatment of individuals with lower back pain. An…
A: The hypothesis test compares the mean pain levels of two groups: one receiving educational material…
Q: When interpreting F (10, 29) = 4.78, p > 0.05, how many subjects were tested in this simple one-way…
A: The F-statistic is a ratio of two sample variances, and it is commonly used in hypothesis testing to…
Q: What is the F cutoff for main effect Vividness? What is the F cutoff for main effect Phrase Length?…
A: From the given information, short/Low Short/High Long/Low Long/High 6 9 2 1 4 5 4 1 The…
Q: Is there a difference between urban and rural jurisdictions in the hiring of female police officers?…
A: In the given problem we have given that, in California, for urban jurisdictions (n = 77) the mean…
Q: s study the relationship between interpersonal violence and health in colege age women. The research…
A:
Q: researcher computes the correlation coefficient r= -0.1389 for an explanatory and response variable.…
A: The correlation coefficient(r)=-0.1389
Q: A independent measures ANOVA was found to be significant, with a SSBetween- Treatments = 250.61 and…
A: Effect size is a statistical concept that measures the strength of the relationship between two…
Q: An ANOVA is used to evaluate the mean difference among three treatment conditions with a sample of…
A: Given Anova is used to evaluate mean difference among three treatments.So number of treatments = k =…
Q: If the t-statistic for a variable is -1.74, is the variable statistically significant? No Yes
A: If the t-statistic for a variable is -1.74, is the variable statistically significant? Explanation:…
Q: Research indicates that there may be a relationship between caffeinated coffee consumption and risk…
A: Given : Caffeinated coffee Depression <1 cup/wk >=1 cup/day 2-3 cups/day 4+…
Q: An electronics retailer would like to investigate the relationship between the selling price of a…
A: The sample correlation coefficient is -0.852.
Q: In a study of a representative group of men, the correlation between height and weight was 0.43. One…
A: This question examines the correlation between height and weight in a study of a representative…
Q: You are assigned to run a study comparing a new medication (X̅=17.47,n=19), an existing medication…
A: Given: SSB = 210.10, SSW = 133.90, new medication (X̅=17.47,n=19), existing medication (X̅ = 17.94,…
Q: In a survey that included assessment of husband and wife heights, Hodges, Krech, & Crutchfield…
A:
Q: Dr. Guidry conducts a study examining the relationship between the number of friends one has and the…
A: A study reported in the Journal of Small Business Management concluded that self- employed…
Q: Nota, Ferrari, Soresi, and Wehmeyer (2007) measured the relationship between IQ and the four…
A: Given, Sample size, n = 141 Negative correlation between IQ and self-determination in daily…
Q: A random sample of 15 families representing three different Scandinavian countries has been observed…
A: Given: Sweden Norway Denmark 10 11 7 9 10 5 4 5 2 2 2 0
Q: Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact…
A: The question is about ANOVA Given :
Q: The data below shows the selling price (in hundred thousands) and the list price (in hundred…
A: Given: x y 401 415 302 319 375 385 435 437 460 486 475 476 318 324 352 366…
Q: A group of disabled women ages 65 and older were followed for several years. It was found that those…
A: In the following question it being observed that is there a cause and affect relationship between…
Q: An ANOVA is used to evaluate the mean differences among three treatment conditions with a sample of…
A: It is given that the number of treatments is 3.Total number of observations is (12 x 3) = 36.
Q: A clinical psychologist is investigating the relationship between sleep and feelings of anxiety. For…
A: Given:Mx=6, SSx=16My=8, SSy=64 and SP=-20 Let x denotes the Hours of sleep and y denotes the…
Q: Women are recommended to consume 1720 calories per day. You suspect that the average calorie intake…
A: Note: Hi there! Thank you for posting the question. As there are multiple sub-parts, according to…
Q: An analysis of variances produces dftotal = 16 and dfwithin = 14. For this analysis, how many…
A:
Q: Let’s say you have a study looking at the DV “Time to help”. Your IV is whether potential helpers…
A: Cohen's d is a type of effect size that represents the degree to which a null hypothesis is false.…
Q: study sample mean difference of X= 4.25 with SS = 128 for the difference scores. Is this mear…
A: n=9 Sample size x=4.25 Difference of sample mean SS=128 Diffeence of Sum of square
Q: 30.5% of cases fall below what z- score?
A: Here we need to find the Z score within which 30.5% area lies.
Q: nutrition store in the mall is selling “Memory Booster” which is a concoction of herbs and minerals…
A: 1] sample size n=16 2]sample mean μ=24 3] sample variance=64 sample standard deviation=8 and level…
The result of an One-Way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) was F(3, 117) = 3.827, p < .05. The corresponding effect size was η2 = .26. What can be concluded about these results?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Below are her findings.• Life satisfaction and experience of daily stress: r = .57 (p = .01)• Number of friends one has and experience of daily stress: r = .09, not sig.• Number of friends one has and life satisfaction: r = .36 (p = .04) Which of the following conclusions can Dr. Guidry draw about the number of friends one has and life satisfaction based on her statistical analyses? a. The probability of her sample coming from a zero association population is about 4%. (correct answer) b. The probability of her sample coming from a zero association population is about 96%. c. The relationship is not statistically significant. d. The strong correlation means that the number of friends one has causes an…Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Below are her findings.• Life satisfaction and experience of daily stress: r = .57 (p = .01)• Number of friends one has and experience of daily stress: r = .09, not sig.• Number of friends one has and life satisfaction: r = .36 (p = .04) In determining whether the relationship between two of Dr. Guidry’s variables was statistically significant, which of the following must be considered? a. Sample size and number of variables analyzed b. Direction of the association and strength of the association c. Sample size and effect size d. The number of outliers and the direction of the association Answer is C. But why? Why,b,c,d are wrong?was performed to assess whether mean HR differed significantly for a A(n) group of 10 participants who consumed no caffeine (Group 1) compared with a group of 10 participants who consumed 150 mg of caffeine (Group 2). The result was statistically significant, t (18) = -2.75, p = .013, two-tailed, 95% CI [-17.81, -2.39]. Mean HR for the no caffeine group (M= 57.80, SD = 7.20) was about 10 bpm lower than mean HR for the caffeine group (M= 67.90, SD= 9.10). Which type of test is this? Paired samples t-test O MANOVA O Independent samples t-test ANOVA
- A group of health conscious researchers were interested in ways to lower blood pressure. The study consisted of 90 participants. 30 participants were randomly assigned to eat a heart healthy diet, 30 were randomly assigned to a heart healthy exercise routine, and 30 were randomly assigned to do nothing and serve as a control. After a month of their assigned intervention, participants' blood pressure was measured. Which statistical test should be used to compare the 3 intervention types on post-treatment blood pressure? df between= ? df within= ? df total= ?A research study examined the effects of a new drug versus an old drug on hypertension. There were 172 people enrolled in the new drug group, and 125 of them were hypertensive. For the old drug group, 165 people were enrolled and of those, 76 were hypertensive. Was there a difference in the proportion of people who were hypertensive between the new drug and the old drug? Calculate the z or t test statisticcan you explain how these scores were found, based on the statistics provided they dont seem to match up.' There is a significant interaction effect between employment status and substance use on stress levels. Two-Way ANOVA result: F(3,470) = 5.67, p = 0.001' I
- Are seatbelts effective at saving lives? We wish to examine whether or not the use of seatbelts reduces fatalities at the a = 0.01 level of significance. Let pN represent the proportion of non-seatbelt wearing passengers who were involved in a crash and died and py represent the proportion of seatbelt wearing passengers who were involved in a crash and died. NOTE: The data used in this study were obtained through observational study...no experiment was conducted! Which would be correct hypotheses for this test? O Ho:PN = pY, H1:PN > pY Ho: PN = pY, H,:PN Py In a random sample of 321 non-seatbelt wearing passengers involved in a car crash, 30 were killed. In a random sample of 492 seatbelt wearing passengers involved in a car crash, 13 were killed. Find the test statistic (2 decimal places): Give the P-value (4 decimal places - if less than 0.001 answer 0): Which is the correct result: Reject the Null Hypothesis O Do not Reject the Null Hypothesis Which would be the appropriate…D Listed below are the overhead widths (in cm) of seals measured from photographs and the weights of the seals (in kg). The purpose of the study was to determine if weights of seals could be determined from overhead photographs. Is there sufficient evidence to conclude that there is a correlation between overhead widths and the weights of the seals? Use a significance level of α=0.10. Overhead width (cm) Weight (kg) Click the icon to view the critical values of Spearman's rank correlation coefficient. Ho: Ps H₁: Ps Determine r Determine the null and alternative hypotheses. ▼ A₂ 7.6 141 Ts=(Round to three decimal places as needed.) 7.1 9.5 7.8 8.4 9.1 110 154 170 232 177 Determine the critical values. Critical values are DELL Next 11:25 AM 4/9/2023In Dr. Potter’s study of ‘Objective Increases in Fear Based on Type of Haunting’, he reported that ghosts earned a z-score of 0.93, spirits earned a z-score of -0.75, and phantoms earned a z-score of -1.18. Assuming that a z-score of 0.00 represents the average amount of fear a person experiences during a haunting, answer the following questions: Which of the hauntings tested would you select if you wanted to increase fear as much as possible? Why would you choose this haunting? Which of the hauntings would you give to someone if you wanted to decrease fear as much as possible? Why would you choose this haunting?
- The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is different if the sex offender is also a drug addict. Of the 321 convicted sex offenders who were also drug addicts, 22 of them became repeat offenders. What can be concluded at the a = 0.01 level of significance?Is the proportion of wildfires caused by humans in the south lower than the proportion of wildfires caused by humans in the west? 360 of the 501 randomly selected wildfires looked at in the south were caused by humans while 435 of the 588 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the = 0.10 level of significance? For this study, we should use Select an answer t-test for the difference between two dependent population means z-test for the difference between two population proportions t-test for a population mean t-test for the difference between two independent population means z-test for a population proportion The null and alternative hypotheses would be: Select an answer μ1 p1 Select an answer < ≠ > = Select an answer μ2 p2 (please enter a decimal) Select an answer μ1 p1 Select an answer > ≠ < = Select an answer p2 μ2 (Please enter a decimal) The test statistic ? z t = (please show your…Investigators wished to study whether pregnant women over the age of 42 were more likely to suffer from postnatal depression than the general population. The mean Edinburgh Postnatal Depression Scale rating for the population is estimated to be about 21. The 121 women over the age of 42 in the study reported a mean EPDS score of 23 (SD=1.7). You are interested in investigating if there a significant difference between the women in the study and the general population. What kind of sample and outcome is this?