A new light bulb is being considered for use in an office with computers. It is decided that the new bulb will only be used if it has a mean lifetime of more than 500 hours. A random sample of 40 bulbs is selected and placed on life test. The mean and standard deviation are found to be 505 hours and 18 hours, respectively. What type of test would be used to determine whether the new bulb should be used

unless if u could do my questions, if not i wouldn't want to

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

k

step-by-step explanation:

domit