(b) Test the hypothesis at the a=0.10 level of significance. Is a mean math score of 524 statistically significantly higher than 517? Conduct a hypothesis test using the P-value approach. Find the test statistic
(Round to two decimal places as needed)

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81