I was doing some probability questions including pool variance i almost solved it however I am not sure if I am on the right path is it possible for you to assist me? Thank

SI The table below represents the results of an ANOVA Test. The value A is equal to ered of 1.00 ANOVA GWG Sum of Squares cdf Mean Square F Sig Between Groups 844.036 281.345 D 000 Within Groups B 75 14.678 Total C 78 Select one: O a. 3 O b. 1100.877 O c. 5 d. 19.167 O e. 1944.913 Next ING delete home & backspace LOCK 6 8 O Y U O Pesearchers are interested in determining whether birth weight differs based on whether the mother smoked (non-smoker, ex-smoker, less than half a ack per day, more than half a pack per day). Using the output below, what is the estimate of the pooled variance? ANOVA Birth Weight Sum of Squares df Mean Square F Sig Between Groups 11.508 3 3.836 4.149 019 Within Groups 19.417 21 925 Total 30.926 24 Select one: O a. 37.212 O b. 59.267 O C. 0.925 O d. 0.962A research group would like to determine the average inflation rate for countries in the Caribbean region. They use the inflation rates from 8 countries in the region. The appropriate analysis for this scenario is Select one: O a. a hypothesis test. O b. not to use any inferential methods. O c. a confidence interval. O d. either a hypothesis test or a confidence interval.Researchers are concerned about the impact of students working while they are enrolled in classes. They would like to determine if students work too nuch and therefore are spending less time on their classes than they should be. First, the researchers need to find out, on average, how many hours per week students are working. To do this, researchers should Select one: O a. either construct a confidence interval or conduct a hypothesis test O b. construct a confidence interval O c. conduct a hypothesis test O d. not use any inferential methods