# Q64 the most appropriate null hypothesis in symbols

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Q64:The most appropriate null hypothesis (in symbols) would beA.μnew program= 6.3B.μnew program= 5.5C.μnew program6.3D.μnew program6.3
Q65:Set up the criteria for making a decision. That is, find the critical value using analpha = .01. (Make sure you are sign specific: + ; - ; or) (Use your tables)Summarize the data into the appropriate test statistic.Steps:Q66:What is the numeric value of your standard error?Q67:What is the z-value or t-value you obtained (your test statistic)?Q68:Based on your results (and comparing your Q67 and Q65 answers) would you
Q69:The best conclusion for this example would be
Q70:Based on your evaluation of the null in Q68 and your conclusion is Q69, as a researcheryou would be more concerned with a
Calculate the99%confidence interval.Steps:Q71:The mean you will use for this calculation isA.5.5B.6.3
10Q72:What is the new critical value you will use for this calculation?Q73:As you know, two values will be required to complete the following equation:____________________The following 4 questions (Q74 to Q77) are based on the following situation:If α = .10, and β = .30, complete the following questions by inserting the appropriateprobability of each.Q74:The statistical decision is to reject the null, and H0is really true (ie: a Type I error)Q75:The statistical decision is to fail to reject null, and H0is really true (ie: a correct decision)Q76:The statistical decision is to reject the null, and H0is really false (ie: Power)Q77:The statistical decision is to fail to reject the null, and H0is really false(ie a Type II error)The following 14 questions (Q78 to Q91) are based on the following example:A researcher wants to determine whether high school students who attend an SATpreparation course score significantly different on the SAT than students who do not attend thepreparation course. For those who do not attend the course, the population mean is 1050 (μ =1050). The 16 students who attend the preparation course average 1150 on the SAT, with asample standard deviation of 300. On the basis of these data, can the researcher conclude that thepreparation course has a significant difference on SAT scores? Set alpha equal to .05.Q78:The appropriate statistical procedure for this example would be a

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Term
Summer
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Tags
Statistical hypothesis testing, researcher, Statistical significance, following model, additional short answer questions
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