they all one plz

That is the last question about variance in waiting times at the credit union. Question 23 1pts For Questions 23 through 35, refer to the following scenario: A weight-loss app that combines dietary and exercise advice wanted to market itself to men wanting to lose weight. Researchers for the app recruited 24 healthy overweight men into a 2-month study. They randomly assigned 8 men to use the app, 8 men to follow a popular diet, and 8 men to increase their normal exercise level. The men were weighed at the beginning and the end of the study, and the amount of weight loss was calculated for each man. What is the factor in this study? the weight-loss method the men the motivation to lose weight exercise What are the treatments? the number of downloads of the app the men in the study following the app, diet alone, exercise alone Question 25 What or who are the experimental units? the months the men the treatments the pounds of weight What is the response variable? the three groups the app the type of weight-loss method amount of weight loss the men Question 27 Can the research design employed here prove that the treatment caused the weight loss, if any is found? No Yes Suppose that, instead of using random assignment, the researchers allowed the men to choose the method that sounded most appealing to them. The three different groups followed their chosen weight-loss method for two months. Can that study design prove that the weight-loss method caused the weight loss, if any is found? Question 29 2 pts The researchers used ANOVA to analyze the data at an a=0.05 significance level. What are the correct hypotheses? H0:1=2=3HA:1=2=3H0:1=2=3HA:1=2=3H0:1=2=3 Check ALL the correct answers. The researchers used ANOVA to analyze the data at an =0.05 significance level. Here is the summary table: ANOVA Summarv Table: Weight-loss Methods Should the null hypothesis be rejected in this ANOVA? Check ALL the correct answers. No, because 8.39>3.47 Yes, because 0.00213.47 No, because 0.0021