A cell phone manufacturer would like to estimate the mean difference in battery lifespan for a phone in full-power versus power-saver mode. They randomly select eight phones and determine the battery lifespan, in hours, for each
phone using each power mode. The data are displayed in the table.
Phone
Full Power
Low Power
1
8.25
14
2
8
15.5
3
8.5
13.5
4
8.5
14.25
5
8.25
15.25
6
9
13.75
7
8.5
14.5
8
8.25
15
What is the mean difference (low - full) and the standard deviation of the differences?
did=5.875. Si=0.899
dir = 5.875. dift = 0.961
*dit = 6,063, Sdir=0.899
ditt = 6,063, 5#=0.961

i hope this is what you were looking for.

see attached graph

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.

answer: 72: 111

step-by-step explanation: