Two types of medicine were used on 5 and 7 patients for reducing their weights in Jerry's 'slim-beauty' health club. Medicine A was allopathic and medicine B was Herbal. The weight after using the medicine for 6 months was as follows: 10 12 13 11 14 8| 9| 12 | 14| 15| 10 9 Medicine A Medicine B Test the hypothesis if there are significant differences in medicine B and medicine A by using 0.001 of significance level. Assume that the variances of population are unknown but equal.
Q: c) Find the test statistic, round answer to 1 decimal place. x² = d) What is the p-value? Round…
A: Given: Observed frequency yes no total treatment 16 50 66 control 9 94 103 total 25 144…
Q: Compute the value of the test statistic. (to 2 decimals) What is the p-value?
A: The test statistic is, t=x¯1-x¯2s12n1+s22n2=6.82-6.250.64216+0.75210=0.570.28609439=1.9923≈1.99…
Q: Candidate T wants to determine if there is a difference in his popularity between men and women. To…
A:
Q: OF O The distribution of blood types is the same for each branch of the military. The test-statistic…
A: Given information Test statistic=24.404 Level of significance ɑ=0.01
Q: Which of these best describes the conclusion we could make using a 5% level of significance? Select…
A: The decision in the hypothesis testing can be made using two important methods. They are the p-value…
Q: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA test?…
A: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA…
Q: Because of safety considerations, in May 2003, the Federal Aviation Administration (FAA) changed its…
A: Given information: x¯summer=183x¯winter=190nsummer=100=nwinterssummer=21swinter=24 a)…
Q: A volleyball coach wants to test two different methods of practice for serving and determine if one…
A: Here, there are two samples. If the two samples are not related to each other, then independent…
Q: You want to test whether the proportion of men who smoke is…
A: Given that Male Female Sample size (n1) = 200 Sample size (n2) = 200 Smoke (x1) = 62 Smoke…
Q: A researcher is interested in factors related to academic performance of students.She hypothesized…
A: Given: Number of categories of academic majors (c) = 4 Test value = 2.75 p value = 0.283
Q: A cookie company named “Me Want Cookie” wants to test if people prefer (on a scale from 0-10-the…
A: We perform ANOVA using the step by step procedure in excel as below: Enter the data in excel sheet.…
Q: ment examines the performance, as measured by the number of errors made, on a motor skills task. 24…
A: easy hard young 5 7 3 5 2 8 6 9 4 9 6 7 old 6 10 7 11 6 14…
Q: article in the Archives of Internal Medicine reported that in a sample of 244 men, 73 had elevated…
A: Given that Sample size n1=244 , n2=232 Favorable cases x1=73, x2=44
Q: Critical Values of the t-Distribution Critical Values of the t-Distribution a a 0.40 0.30 0.20 0.15…
A: The objective of this question is to identify the correct null and alternative hypotheses to test…
Q: DO STYROFOAM CUPS HOLD HOT OR COLD LIQUIDS BETTER? WHAT WILL BE YOUR CONTROL GROUP ? WHAT WILL BE…
A: The researcher wants to conduct an experiment to test if Styrofoam cups hold hot or cold liquids…
Q: A new brand of shoes joins the market. Sprinters are wondering which brand they should get, or if it…
A: Denote μ1, μ2 as the population mean times to run for 100 m using first and second brand,…
Q: You are doing a one way analysis of variance on the fuel consumption of different makes of cars. You…
A: Suppose we are doing one-way analysis on the fuel consumption of different makes of cars. The total…
Q: Researchers examined the influence of a television program on children's aggressiveness. The number…
A: Since we only answer up to 3 sub-parts, I'll answer the 1st 3 sub-parts. Please resubmit the…
Q: What is the difference between a one way anova, a repeated measures anova, and 2 way anova? Are the…
A: ANOVA test is used to analyze the difference between means of more than two groups. One way ANOVA…
Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…
A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…
Q: Depression is a serious mental disorder that has been shown to respond very well to cognitive…
A: Introduction: An independent variable in a study is a variable that has the potential to affect and…
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: Depression is a serious mental disorder that has been shown to respond very well to cognitive…
A: The following are the scores for the sample: 4, 3, 6, 2, 4, 6, 7, 5, 2, 1, 8, 9, 7, 4, and 10 The…
Q: You are doing a one way analysis of variance on the fuel consumption of different makes of cars. You…
A: Solution: From the given information, total number of cars is 43 and the number of treatments is 6.…
Q: A researcher conducts an independent-measures study examining how the brain chemical serotonin is…
A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have helped…
Q: b) Fill in the expected values, round answers to at least 2 decimal places. Expected Pain Free: Yes…
A: (b)
Q: I was interested in how many days a week people do laundry. I asked 11 of my coworkers and friends…
A: Calculating sample mean and sample standard deviation of data:…
Q: Lynn University wants to examine whether students display better academic performance in class…
A:
Q: Four surgical procedures currently are used to install pacemakers. If the patient does not need to…
A: Solution-: Given: α=0.05 We have following table: A B C D Clear 27 41 21 7 Return 11 15 9…
Q: A study was conducted to determine the influence of physical characteristics of a person in judging…
A: Consider the given study which is conducted to determine the influence of physical characteristics…
Q: You are interested in evaluating how well students perform on an attention test. There are two…
A: In this case, the two conditions "low noise and high noise" are dependent on each other. Both…
Q: analyze her data
A: ANOVA: This is a Statistical technique to check the variation in the data. We are checking the…
Q: A researcher is interested in whether men and women differ in terms of depression levels. They…
A: From the above data The hypothesis are H0 : μ1 = μ2H1 : μ1 ≠ μ2 i have upload the steps and output…
Q: Walgreens purchased several new processing machines. The production department needed some guidance…
A:
Q: Can you conclude that the proportion of boys who are overweight differs from the proportion of girls…
A: Here use proportion test for 2 sample
Q: Brian, a college administrator, claimed that there was no difference in averages of students coming…
A: The independent variable is students. The dependent variables are three schools A, B and C. We have…
Q: A clinical psychologist is interested in the effect of a new treatment for treating depression. She…
A: Given: New Old 2 7 5 10 3 6 8 8 11 4 4 8 6 10 4 4
Q: In psychology, what are two factors that decrease statistical power?
A: Factors that affect power are There are 3 factors that affect power are :-• Sample size (n) : -…
Q: Experimental psychology studies Select one: O a. variance among participants O b. interaction…
A: Solution A experimental psychology studies is used to find whether one factor effect others.
Q: In a One-way Between Subject ANOVA, the number of levels the IV had was 3, and the within/error…
A: Given thatin a One-way Between Subject ANOVA, the number of levels the IV had was 3, and the…
Q: The following table represents the results of the study which compares effects of regular coffee vs…
A: The objective of this question is to calculate the risk difference (RD) in a study comparing the…
Q: The Bureau of Labor Statistics reports that the official unemployment rate for Black people was…
A: Variables are of different types. The correct classification of variables and the identification of…
Step by step
Solved in 3 steps with 3 images
- What is the Mean of the Millennial Group? how about the Gen Z group?A researcher gathered a sample of participants who volunteered for a studying of phobias. She measured anxiety level of participants as they viewed photos of spiders and again when they viewed puppies. Which statistical test is appropriate for this study and why?Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA test? Group of answer choices To determine if keyboard type and gender influence average writing performance. To determine if keyboard type influences average writing performance. To determine if gender influences average writing performance. None of the Above
- According to a report on consumer fraud and identity theft, 22% of all complaints for a year were for identity theft. In that year, Wisconsin had 787 complaints of identity theft out of 3498 consumer complaints. Does this data provide enough evidence to show that Wisconsin had a higher proportion of identity theft than 22%? Test at the 1% level. State the hypotheses. Ho: p? v Ha: p|? v Calculate the test statistic. Round to four decimal places. Calculate the standardized test statistic. Round to three decimal places. Z = Find the p-value. Round to four decimal places. p-value = State your decision. O Since the p-value is less than .01, reject Họ. O Since the p-value is greater than .01, reject Ho. O Since the p-value is less than .01, fail to reject Ho. O Since the p-value is greater than .01, fail to reject Ho. Interpret the results. O At the 1% level of significance, there is enough evidence to show that the proportion of complaints due to identity theft in Wisconsin is not equal to…A recent study on driving behavior examined whether the combination of high driving skills and low safety skills is dangerous. Participants were classified as high or low in driving skill based on responses to a driver-skill inventory, then classified as high or low in safety skill based on responses to a driver-aggression scale. An overall measure of driving risk was obtained by combining several variables such as number of accidents, tickets, tendency to speed, etc. The following data were obtained. Use a 2 x 2 ANOVA with the .05 significance level to evaluate the results. What cutoff score(s) should be used? Driving Skill Low High Safety Skill Low M1=5 M2=4.5 S1=2.7 S2=3.8 N1=6 N2=6 HIgh M3=3 M4=3.5 S3=2.9 S4=2.5 N3=6 N4=6 Group of answer choices +4.35 +3.40 +3.49 +4.26B? please
- A clinical trial is conducted to compare a new pain re- liever for arthritis to a placebo. Participants are randomly assigned to receive the new medication or a placebo, and the outcome is pain relief within 30 minutes. The data are shown in Table 7–8. Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance. Pain Relief No Pain Relief New Medication 44 76 Placebo 21 99 How would I use excel with this?Q3.3 Normal, but why? A meal package for use at the space station is to be prepared by combining three separate components: protein, fruit/vegetable, and grains. Each of the components is to be randomly selected. Summary values for the caloric content for each of the components are given in the table. Component Protein (P) Fruit/vegetable (F) Grain (G) Mean (calories) 120 55 84 Stdv (calories) 6.4 Save Answer 1.0 3.6 Assume that the distributions of caloric content for each of the components are approximately normally distributed. Since the meal package consists of protein, fruit/vegetable, and grains, the total caloric content of a meal package is the random variable T, where T = P + F + G. Briefly explain why it is appropriate to say that T is approximately normally distributed. Q3.4 Probability Less than 275 Calories On your own piece of paper find the approximate probability that a randomly selected meal package will have less than 269 calories? (Draw an appropriate diagram, find a…A psychologist would like to examine the effects of caffeine consumption on the activity level of preschool children. Three samples of children are selected with n = 5 in each sample. One group gets no caffeine, one group gets a small dose, and the third group gets a large dose. The psychologist records the activity level for each child during 50 minutes of unstructured play. Determine whether these data indicate significant differences among the three groups using a = .05. Your answer should include hypotheses, critical boundary, F-score, and results including notation, decision, and explanation. Calculate and interpret effect size if appropriate. Indicate whether post- hoc test results should be calculated (i.e., "yes, include" or "no, do not include"). No caffeine Small dose Large dose T= 15 T= 20 T= 25 G = 60 SS = 16 SS = 12 SS = 20 Ex2 = 298
- A statistician changes her level of significance from .001 to .05. What impact will this change have on her risk of making a Type I and Type II error? Is the change in the level of significance a good decision? Why or why not?A recent study on driving behavior examined whether the combination of high driving skills and low safety skills is dangerous. Participants were classified as high or low in driving skill based on responses to a driver-skill inventory, then classified as high or low in safety skill based on responses to a driver-aggression scale. An overall measure of driving risk was obtained by combining several variables such as number of accidents, tickets, tendency to speed, etc. The following data were obtained. Use a 2 x 2 ANOVA with the .05 significance level to evaluate the results. Which of the following is one of the research hypotheses? Driving Skill Low High Safety Skill Low M1=5 M2=4.5 S1=2.7 S2=3.8 N1=6 N2=6 HIgh M3=3 M4=3.5 S3=2.9 S4=2.5 N3=6 N4=6 Group of answer choices The difference in driving risk between drivers with high and low driving safety does not depend on driving skill level On average, drivers classified as high and low in safety skill do not…