27. At a = 0.05, what is the correct decision? A. Do not reject the null hypothesis. B. Reject the alternative hypothesis. C. Reject the null hypothesis. D. Do not reject the alternative hypothesis....


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27. At a = 0.05, what is the correct decision?<br>A. Do not reject the null hypothesis.<br>B. Reject the alternative hypothesis.<br>C. Reject the null hypothesis.<br>D. Do not reject the alternative hypothesis.<br>For #28 - #3 0<br>ANOVA<br>Source of Variation<br>Between Groups<br>Within Groups<br>P-vaiue<br>of<br>209.8314 3.815777 0.047564<br>54.99048<br>F<br>419.6627<br>2<br>769.8667<br>14<br>Total<br>1189.529<br>16<br>28. What is the appropriate null hypothesis for this test?<br>A. Ho: H = Hz = ls = H4<br>B. Ho: 4, = Lz = ls<br>C. Ho: 4 = lz<br>D. Ho: 4, # 42<br>29. What is the sample size for this data?<br>A. three<br>B. Fourteen<br>C. seventeen<br>D. sixteen<br>30. Given the Excel output, what can you conclude about the null hypothesis at 99%<br>confidence level?<br>A. Do not reject the null hypothesis.<br>B. Reject the alternative hypothesis.<br>C. Reject the null hypothesis.<br>D. Do not reject the alternative hypothesis.<br>

Extracted text: 27. At a = 0.05, what is the correct decision? A. Do not reject the null hypothesis. B. Reject the alternative hypothesis. C. Reject the null hypothesis. D. Do not reject the alternative hypothesis. For #28 - #3 0 ANOVA Source of Variation Between Groups Within Groups P-vaiue of 209.8314 3.815777 0.047564 54.99048 F 419.6627 2 769.8667 14 Total 1189.529 16 28. What is the appropriate null hypothesis for this test? A. Ho: H = Hz = ls = H4 B. Ho: 4, = Lz = ls C. Ho: 4 = lz D. Ho: 4, # 42 29. What is the sample size for this data? A. three B. Fourteen C. seventeen D. sixteen 30. Given the Excel output, what can you conclude about the null hypothesis at 99% confidence level? A. Do not reject the null hypothesis. B. Reject the alternative hypothesis. C. Reject the null hypothesis. D. Do not reject the alternative hypothesis.
For #22 - #27:<br>The following are measurements of the heat-producing capacity (in millions of calories<br>per ton) of random samples of five specimens each of coal from two mines:<br>8380 8210 8360 7840 7910<br>Mine 1:<br>Mine 2:<br>7540 7720 7750 8100 7690<br>Below are the EXCEL outputs of the data at 95% confidence level:<br>t-Test: Paired Two Sample for Means<br>MINE 2<br>7760<br>42650<br>t-Test: Two-Sample Assuming Equal Vari<br>MINE 1 MINE 2<br>MINE 1<br>Mean<br>Variance<br>Observations<br>Pooled Varianca<br>Hypothesized Me<br>Mean<br>8140<br>8140<br>7760<br>63450<br>42650<br>Variance<br>Observations<br>62450<br>Pearson Correlation -0.69059<br>53050<br>Hypothesized Mear<br>of<br>t Stat<br>P(Tet) ona-tail<br>t Critical one-tail<br>of<br>2.014279<br>2.608621<br>tStat<br>PIT<=t) ona-tai<br>tCritical ona-tail 1859548<br>PIT<=t) two-tail<br>B. ECritical two-tail 2306004<br>0.05712<br>0.015599<br>2.131847<br>0.11424<br>2.776445<br>P(T<=t) two-t:il<br>0.031197<br>A.<br>Critical two-tail<br>22. Which of the two excel output above is the correct result of the data.<br>A. Choice A<br>C. Both<br>B. Choice B<br>D. None<br>23. What is the appropriate set of hypotheses for this test?<br>A. H,: 4 – H: < 0 vs Hai 4 – H2 > 0<br>B. H,: µ – H2 = 0 vs Ha: H. – Hz # 0<br>C. H,: 4, – Hz 20 vs Ha: 4 - u; = 0<br>D. H.: 4, - 4, 20 vs Ha: H. - H, >0<br>24. From the given results above, which test is appropriate to test the significant<br>difference between the heat-producing capacities of the coal from the mines?<br>A. t-Test: Paired Two Sample for Means/Dependent<br>B. t-Test: Two-Sample Assuming Equal Variances/ Independent<br>C. ANOVA<br>D. Z- test<br>25. What is the t- critical value?<br>A. 2.131847<br>C. 1.859548038 D. 2.306004<br>B. 2.776445<br>26. What is the p-value?<br>A. 0.05712<br>B. 0.11424<br>C. 0.015598<br>D. 0.031197<br>

Extracted text: For #22 - #27: The following are measurements of the heat-producing capacity (in millions of calories per ton) of random samples of five specimens each of coal from two mines: 8380 8210 8360 7840 7910 Mine 1: Mine 2: 7540 7720 7750 8100 7690 Below are the EXCEL outputs of the data at 95% confidence level: t-Test: Paired Two Sample for Means MINE 2 7760 42650 t-Test: Two-Sample Assuming Equal Vari MINE 1 MINE 2 MINE 1 Mean Variance Observations Pooled Varianca Hypothesized Me Mean 8140 8140 7760 63450 42650 Variance Observations 62450 Pearson Correlation -0.69059 53050 Hypothesized Mear of t Stat P(Tet) ona-tail t Critical one-tail of 2.014279 2.608621 tStat PIT<=t) ona-tai="" tcritical="" ona-tail="" 1859548=""><=t) two-tail="" b.="" ecritical="" two-tail="" 2306004="" 0.05712="" 0.015599="" 2.131847="" 0.11424="" 2.776445=""><=t) two-t:il="" 0.031197="" a.="" critical="" two-tail="" 22.="" which="" of="" the="" two="" excel="" output="" above="" is="" the="" correct="" result="" of="" the="" data.="" a.="" choice="" a="" c.="" both="" b.="" choice="" b="" d.="" none="" 23.="" what="" is="" the="" appropriate="" set="" of="" hypotheses="" for="" this="" test?="" a.="" h,:="" 4="" –="" h:="">< 0="" vs="" hai="" 4="" –="" h2=""> 0 B. H,: µ – H2 = 0 vs Ha: H. – Hz # 0 C. H,: 4, – Hz 20 vs Ha: 4 - u; = 0 D. H.: 4, - 4, 20 vs Ha: H. - H, >0 24. From the given results above, which test is appropriate to test the significant difference between the heat-producing capacities of the coal from the mines? A. t-Test: Paired Two Sample for Means/Dependent B. t-Test: Two-Sample Assuming Equal Variances/ Independent C. ANOVA D. Z- test 25. What is the t- critical value? A. 2.131847 C. 1.859548038 D. 2.306004 B. 2.776445 26. What is the p-value? A. 0.05712 B. 0.11424 C. 0.015598 D. 0.031197
Jun 05, 2022
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