Conduct the hypothesis testing by following the 7 step model.Use P-Value Method The average score of all sixth graders in school District A on a math aptitude exam is 75 with a standard deviation of 8.1. A random sample of 100 students in one school was taken. The mean score of these 100 students was 71. Does this indicate that the students of this school are significantly less skilled in their mathematical abilities than the average student in the district? (Use a 5% level of significance.)

Steps in Hypothesis Testing using P-Value Method Value Method 1. Dracribe the population parameter of interest, Formulase the null and allemilie hypatbeat Check the amcompass 4. Choose a significance level site for s. Make a small when the consequences of rejecting a true Hi is severe. In the brat two-laund or one-talked? Get the critical valore from the frat statistic cable. Establish the cotkel rocked 5. Select the appropriate test statistic State the decision rule for septeting or not the null hypothesis. For a two tailed test Reject H, If the compused probability value (multiplied by fog inta Do not react H. if the computed probability valet (multiplied by turo ica. For a one talked fest [Right Reject H. if the compused probability valor in t a. The not reject It If the computed probability value is ca For a one talked test (Lefty Deject IL, if the computed probability whip is fa. Do not reject it. if the computed probability valor i ka. 7. Compare the computed probability value and alpha to] Decide Companion of Crickal Value and P-Valor Mirthed in graphs Verbal Interpretation Less than 0.01 Highly statistically significant: There is a very strong evidence against it. Samistically Significant. There is an adequate evidence against 10 Greater than otos There is insullicical evidence brainit ity