Question

Question 3 1 pts What is the meaning of the P-value provided by a one-way ANOVA? How likely that a mistake is made by rejecting a true null hypothesis If you reject the null hypothesis, there is a 5% chance that you're making an incorrect decision The probability that the observed test-statistic would occur by chance if the null hypothesis is true The probability that there is a difference between the sample means Question 4 1 pts What are the within-groups sums of squares in a one-way analysis of variance? Sum of squared deviations of each data point from the mean of a group sample Sum of squared deviations of each sample mean from the total mean Sum of squared deviations from the total mean None of these answers

Answer 1

## Question 3) what is the meaning of the p value provided by one way ANOVA?

1) How likely that a mistake is made by rejecting a true null hypothesis

2) If you reject the null hypothesis, there is a 5% chance that you're making an incorrect decision

3) The probability that the observed test statistic would occur by chance if the null hypothesis is true

4) The probability that there is a difference between the sample means

Answer : 4 ) The probability that there is a difference between the sample means

Question 4) What are the within - groups sum of square in one-way analysis of variance

# Answer : Sum of squared deviations of each data point from the mean of a group sample

first option is correct : formula is = Sum ( Xij - X.j bar)^2

where X.j bar is column mean . and Xij is observations.