Lightbulbs of a certain type are advertised as have an average lifetime of 750 hours. a random sample of 50 bulbs was selected and the lifetime of each bulb was determined. the sample mean lifetime was 738.44 hours with a standard deviation of 38.2 hours. based on this data, can you conclude that the true average lifetime of these bulbs is less than what advertised? test using = .05.

look at the picture i have filled out a table for it. hope this .

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Okay so n is going to represent our first number. since the second number of five times greater than n, the second number will be represented as 5n. for us to figure out the two  numbers we need to have  the value of n first. this is going to be done by adding the two numbers together, n and 5n. it can be simplified as 6n, which the problem states is equal to 72. divide 72 by 6n and you can solve for n.  n+5n=726n=72n=(72/6)n=12  now that we know the value of n, we have to multiply 5 times 12 which equals 60. so our two numbers/integers are 12 and 60