variables “Age” and “Grade”. (You’ll need to recode the categories in the “Grade” variable.)At an ? = .05 significant level, which statement is true?

What is an appropriate null hypothesis for an ANOVA test?2 pointsQUESTION 2Which questions can be answered with an ANOVA test? Selectanswers that apply.2 pointsQUESTION 3Which of the following ANOVA tests reject Hat an ? = .1 significance level? (Use the data that appears in the file satisfied.csv.)2 pointsQUESTION 4Which is a possible interpretation of this Tukey post hoc test?2 pointsQUESTION 5Five samples were taken randomly from each blood type, and the white cell counts were noted to be as follows:Type A: 5000, 5500, 8000, 10000, 7735Type B: 7000, 8000, 5000, 9900, 6342Type AB: 7000, 7125, 9000, 9235, 6342Type O: 5325, 7985, 6689, 9321, 6666Enter this data into SPSS. Define a new variable, called num_type, that recodes A, B, AB, and O as 1, 2, 3, and 4, respectively.Perform an ANOVA test.The type of test statistic is  (z, t, c, or F) where c stands for ?.The value of the test statistic is  (3, .114, .951, 1.235)The P-value is  (3, .114, .951, 1.235)At a 5% significance level, the appropriate conclusion is  (a, b, c, d)a: The mean white cell counts are not all the same among the four different blood types.b: The mean white cell counts are not significantly different from each other.c:  The mean white cell counts of all four blood types are different.d: The mean white cell counts of two of at least two of the blood types are different from each other.Should a Tukey post hoc test be performed?    (y, n)8 pointsQUESTION 6College student are categorized as a freshman, sophomore, junior, senior, or graduate (graduate means graduate student). Is there a significant difference between the mean ages in these five categories?Open the file satisfied.csv within SPSS. Perform an ANOVA test using the variables “Age” and “Grade”. (You’ll need to recode the categories in the “Grade” variable.)At an ? = .05 significant level, which statement is true?