Scenario 3: On an examination given to students at a large number of different schools, the mean score was 74.5 and the standard deviation was 8.0. At one particular school where 28 students took the examination, the mean score was 75.9. At 5% level of significance, test if there is a significant difference between the sample average score and the previous average score. Test the hypothesis in the given situation. Follow the steps in hypothesis testing and draw a conclusion. Write the null and alternative hypothesis in sentence form and in symbols. Shade the rejection region in the normal curve. Write the conclusion in statement form. 2

Find the value of 7P3

denise does a 15 mi workout each day of training. she bicycles part of the distance & runs the other. Her average cycling speed is 20 mi/h, & her average running speed is 5 mi/h. Let x represent the time she spent cycling & let y represent the time spent running. Copy this table and fill each cell w/ an expression for the distance described. Write an equation to represent Denise's workout. distance denise cycles distamce denise runs total distance