A sample of employees at a large chemical plant was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that there is a relationship between the pension plan selected and the job classification of the employees? Use the 0.01 significance level.     Pension Plan Job Class Plan A Plan B Plan C Supervisor 50 58 40 Clerical 38 57 39 Labor 42 67 20

11 Find the​ mode(s) for the following group of data items.     4.3, 6.5, 7.7, 5.4, 6.9, 6.9, 5.9, 7.4, 6.3, 5.2, 5.2 Select the correct choice below​ and, if​ necessary, fill in the answer box within your choice.   A.The​ mode(s) is/are ______. ��(Use a comma to separate answers as​ needed.)   B.There is no mode.

5. A high school teacher wants to see if there is an effect on vocabulary recall between when students take a quiz before lunch and when they take it after lunch. She randomly selected 10 students and assessed them before lunch on Tuesday. On Wednesday she randomly selected 10 students and assessed them after lunch. The following were the percentage results Before lunch 62 60 68 64 72 75 63 60 64 80 After lunch 72 85 72 62 84 76 66 63 65 64 What type of samples were selected – independent or dependent (paired)? Explain. StatCrunch was used to analyze the data, and the output for both types of samples (independent and dependent) is given below. Using the appropriate output, determine if the mean quiz score is higher for those who take the quiz before lunch over those who take the quiz after lunch at a significance level of 0.05. Hypothesis test results: mean before lunch mean after lunch Hypothesis test results: : µi - µ2 : mean of the PAIRED difference µ2 : between Before and After…

A random sample of n=102 was asked what color they most liked to wear as one question in a survey. What type of graph would be best to display the data below? Note: please do not capitalize your answers when typing them. Color Blue Green Red Purple Yellow Orange # of people 20 15 32 18 15 pie graph histogram O box-and-whiskers