2.6 A recent 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.

Mean of the Population or The claimed population mean 'μ' = 5.5 hrs.

Mean of the sample 'x⁻' = 6.25 hours

Step-by-step explanation:

Explanation:-

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

Discuss about total college students so

Mean of the Population 'μ' = 5.5 hrs.

Given random sample size 'n =25

Given data the sampled students slept 6.25 hours per night

mean of the sample 'x⁻' = 6.25 hours

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.