The following data are product weights for the same items produced on two different production lines. Test for a difference between the product weights for the two lines. Use . Line 1 Line 2 13.7 14.7 13.7 13.7 13.4 13.9 13.2 15.1 13.0 14.7 14.2 14.0 14.0 15.2 13.9 14.9 13.8 14.7 13.0 14.1 14.7 15.1 What is the value of the test statistic

What is the graph of the function fx x+2/x-3?

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?