Arecent article in a college newspaper stated that college students get an average of 5.5 hrs of sleep each night. a student who was skeptical about this value decided to conduct a survey by randomly sampling 25 students. on average, the sampled students slept 6.25 hours per night. identify which value represents the sample mean and which value represents the claimed population mean.

Population mean =

Sample mean =

Step-by-step explanation:

We know that the population mean is the average of the entire population.

The sample mean is the mean of the sample which is derived from the whole population randomly.

Given : A recent article in a college newspaper stated that college students get an average of 5.5 hrs of sleep each night.

Thus , the population mean = 5.5 hrs

Also, On average, the sampled students slept 6.25 hours per night.

It implies , the sample mean =  6.25 hours

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.