MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Confidence Intervals
When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calcul…
Question

Hi, with the question attached. Could you please help me with the last three sections. 

The value of the test statistic:

The critical value at the 0.1 level of significance

And the conclusion? 

Thanks in advance.

According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found twelve recently sold homes in Sun Beach and twelve recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the twenty-four houses. Appreciation rates in percent Sun Beach 13.3, 10.5, 8.8, 13.1, 9.5, 13.9, 10.3, 9.8, 12.5, 11.7, 12.1, 10.4 North Arden 11.3, 9.0, 11.8, 7.8, 3.6, 11.2, 10.0, 9.8, 8.5, 11.4, 8.7, 9.0 Send data to calculator V Send data to Excel Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.1 level of significance, that houses in Sun Beach have higher appreciation over the past three years than houses in North Arden? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) The null hypothesis: H. : 0. The alternative hypothesis: H : 1 D=0 ロSロ The type of test statistic: (Choose one) v O<O The value of the test statistic: (Round to at least three decimal places.) The critical value at the 0.1 level of significance: (Round to at least three decimal places.) Can we conclude that houses in Sun Beach have O Yes No higher appreciation over the past three years than houses in North Arden?
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Transcribed Image Text:According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found twelve recently sold homes in Sun Beach and twelve recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the twenty-four houses. Appreciation rates in percent Sun Beach 13.3, 10.5, 8.8, 13.1, 9.5, 13.9, 10.3, 9.8, 12.5, 11.7, 12.1, 10.4 North Arden 11.3, 9.0, 11.8, 7.8, 3.6, 11.2, 10.0, 9.8, 8.5, 11.4, 8.7, 9.0 Send data to calculator V Send data to Excel Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.1 level of significance, that houses in Sun Beach have higher appreciation over the past three years than houses in North Arden? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) The null hypothesis: H. : 0. The alternative hypothesis: H : 1 D=0 ロSロ The type of test statistic: (Choose one) v O<O The value of the test statistic: (Round to at least three decimal places.) The critical value at the 0.1 level of significance: (Round to at least three decimal places.) Can we conclude that houses in Sun Beach have O Yes No higher appreciation over the past three years than houses in North Arden?
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