You are working on the design for a study on the proportion of adults who work remotely in the U.S. The original design sought to limit the margin of error to 0.1 and the new design seeks to limit the margin of error to 0.01. What must be the corresponding change to the minimum sample size? A. It must increase B. Nothing, because the minimum sample size doesn't depend on margin of error C. It must decrease

1. in one-way ANOVA, identify the statistic used as a measure of variation among the sample means. as a measure of variation within the samples. to compare the variation among the sample means to the variation within the samples. 2. What is a two-way ANOVA?

Consider this sample data for three treatment groups: M1 = 15     M2 = 25   M3= 30    What would be the effect of changing the value of M3 to 40?       a.            Increase SSbetween and increase the size of the F-ratio   b.           Increase SSbetween and decrease the size of the F-ratio c.           Decrease SSbetween and increase the size of the F-ratio d.           Decrease SSbetween and decrease the size of the F-ratio

What happens to the minimum sample size needed to estimate p when the acceptable margin of error increases? O A. the minimum sample size does not change B. the minimum sample size decreases C. the minimum sample size increases

4. A survey of 499 women for the American Orthopedic Foot and Ankle Society revealed that 38% wear flats to work. a. Find 99% confidence interval for the population proportion of women who wear flats to work.

Step 3: Calculate the test statistic. Characteristics of the Sampling Distribution. Mean: μM1-M2 =  (whole number) Standard error: sM1-M2 =  (use 3 dec places)   Test Statistic. tobt =  (use 2 dec places)

5. The ABC University wants to know the proportion of its football fans travel to away games in the same state. The university took a random sample of 2000 of its football fans and found that 500 of them travel to away games in the state. • Identify the population for this situation. What is the parameter? What is the sample? • Identify the sample statistic. Can the university estimate the population proportion based on the sample? Explain your answer.