watch the video and answer the questions

https://youtu.be/NkU-fXy0IIo

Question 1 1 pts No matter how sophisticated you may become as a quantitative researcher, you will always need to: C] examine your code book C] manage your data C] examine descriptive statistics for the variables of interest C] dredge data Question 2 1 pts What are the null and alternative hypotheses for ANOVA? Null Hypothesis J [Choose] Not all the means are equal All the means are the same Alternative Hypothesis Question 3 1 pts The question we need to answer with the ANOVA F-test is \"are the differences among the sample means due to true differences among the population means or merely due to sampling variability?" In order to answer this question using our data, we obviously need to look at the variation among the sample means, but that's not enough. We also need to look at the variation among the sample means relative to the variation within the groups. So F is the variation among sample means divided by the variation within groups. In other words, we need to look at the quantity, variation among sample means, divided by variation within groups, which measures to what extent the difference among the sampled groups means dominates over the usual variation within sampled groups, which reects differences in individuals that are typical in random samples. What does ANOVA stand for? 0 Analysis of Variation Among Sample Means 0 Analysis of Variation within Sample Groups 0 Analysis of the Ratio of Variaonss Question 4 1 pts Country One Sample 1 Sample 2 Sample 3 La 8 16 24 32 56 Data Country Two Sample 1 Sample 2 Samp 32Country 1 \\I [Choose] variation within groups is large variation within groups is small Country 2 [ Choose] V Question 5 1 pts Please refer to the previous graph: The differences or variation among the sample means could become negligible and the data would provide very little evidence against the null hypothesis 0 Country 1 0 Country 2 Question 6 1 pts Please refer to the previous graph: The variation among the sample means dominates and the data have stronger evidence against the null hypothesis. 0 Country 1 0 Country 2