In order to compare the means of two populations, independent random samples of 370 observations are selected from each population, with the following results: Sample 1 Sample 2 x⎯⎯⎯1=513 x⎯⎯⎯2=482 s1=190 s2=180

(a) Test the null hypothesis: H0:(µ1−µ2)=0 versus the alternative hypothesis: H1:(µ1−µ2)≠0. Using =0.03, compute the following:

A=1/2h(b1+b2) is the formula for the area of a a trapezoid b regular polygon c triangle d rhombus or kite

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.