902487-Week+3+Quiz+over+previous+week+material

# 902487-Week 3 Quiz o - Week 3 Quiz over previous week material Please highlight(in an easy-to-see color not red the correct answer and then save

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Week 3 Quiz over previous week material Please highlight (in an easy-to-see color – not red) the correct answer and then save this document to your computer and then send it as an attachment to the your individual forum. T F 1. Hypothesis testing is a procedure based on sample evidence and probability theory to decide whether the hypothesis is a reasonable statement. T F 2. The level of significance is the risk we assume of rejecting the null hypothesis when it is actually true. T F 3. The researcher must decide on the level of significance before formulating a decision rule and collecting sample data. T F 4. A test statistic is a value determined from sample information used to reject or not reject the null hypothesis. T F 5. The region or area of rejection defines the location of all those values that are so large or so small that the probability of their occurrence under a true null hypothesis is rather remote. T F 6. If we do not reject the null hypothesis based on sample evidence, we have proven beyond doubt that the null hypothesis is true. 7. What value does the null hypothesis make a claim about? A) Population parameter B) Sample statistic C) Sample mean D) Type II error E) None of the above 8. Test at the 0.01 level the statement that 55% of those families who plan to purchase a vacation residence in Florida want a condominium. The null hypothesis is π = 0.55 and the alternate is π is not equal to 0.55. A random sample of 400 families who planned to buy a vacation residence revealed that 228 families want a condominium. What decision should be made regarding the null hypothesis? A) Fail to reject it

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## This note was uploaded on 01/05/2012 for the course 101 melissa jo taught by Professor Acc101 during the Spring '11 term at Aarhus Universitet.

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902487-Week 3 Quiz o - Week 3 Quiz over previous week material Please highlight(in an easy-to-see color not red the correct answer and then save

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