Richard wants to compare the data transfer rate of two internet connections. the difference between the means of samples taken for the two connections is 18 mbps. the standard deviation of the distribution of the difference between the sample means is 6.64. which statement is true if we are testing the null hypothesis at the 95% confidence level?
a. the difference between the two means is significant at the 95% confidence level, so the null hypothesis must be rejected.
b. the difference between the two means is significant at the 95% confidence level, so the null hypothesis must be accepted.
c. the difference between the two means is not significant at the 95% confidence level, so the null hypothesis must be rejected.
d. the difference between the two means is not significant at the 95% confidence level, so the null hypothesis must be accepted.

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel

Arectangle has a perimeter of 24 inches. if the width is 5 more than twice the length, what are the dimensions of the rectangle?

Which option identifies how kevin should proceed in the following scenario? four years ago kevin designed an mp3 player for young children. now that technology has changed, he would like to update his design to ensure that it encompasses cutting-edge techniques. by creating a third-angle projection of his ideas by designing an isometric projection of his new ideas by referring to past designs and illustrations of his original model by conferring with engineers who have improved upon similar devices