Suppose a group of people is interested in promoting the upcoming school tax levy. They took a survey asking people's opinion on the upcoming school tax levy (yes, no, no opinion) and they created a confidence interval for the proportion of people who were opposed to it. Their confidence interval fell completely under 50, so less than a majority of the people oppose the levy, according to these results. Is it fair for them to conclude that a majority of the people are in favor of upcoming school tax levy? If yes, explain why. If no, rewrite the conclusion to be correct.
Q. 2Explain the difference between the statistical meaning of the word significant results' and the regular conversational meaning of the word significant results.'
Q. 3What two pieces of information do you get from a confidence interval that can help you evaluate whether or not statistically results are really important to you?
Q. 4The p-value __________ (choose: is, is not) equal to the probability that the null hypothesis is true.
Fill in the blank(s) with correct word
Q. 5A p-value is calculated under the assumption that the null hypothesis is __________.
Indicate whether the statement is true or false
Q. 6Suppose you are examining the difference between two means, and you conduct a two-sided hypothesis test and your friend constructs a confidence interval. Assuming that both reveal that the null hypothesis should be rejected, what can the confidence interval tell you that the hypothesis test cannot?
a. The magnitude of the difference in the means.
b. The direction of the difference in the means.
c. How much variability there was in the observed results.
d. All of the above.
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