Suppose the weights, in pounds, of the dogs in a city are normally distributed. if the population standard deviation is 3 pounds, what minimum sample size is needed to be 95% confident that the sample mean is within 1 pound of the true population mean?

35

Step-by-step explanation:

Given : Standard deviation :

Margin of error :

Significance level :

Critical value :

The formula we use to find the minimum sample size required :-

i.e.

Hence, the minimum sample size is needed to be 95% confident that the sample mean is within 1 pound of the true population mean =35

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

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.