The heights of women in the united states are normally distributed computations. with a mean of 64 inches and a standard deviati
on of 2.75 inches. the percent of women whose heights are between 64 and 69.5 inches, to the nearest whole percent, is
1 answer:
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Answer:
The confidence interval is
Step-by-step explanation:
We have given,
The Z interval (23.305,25.075)
Mean
Sample n=30
To find : The confidence interval?
Solution :
We know, The confidence interval is in the format of
E denotes the margin of error,
Where, U is the upper limit U=25.075
L is the lower limit L=23.305
Substitute the value of E and in the formula,
Therefore, The confidence interval is
Answer:
angle R
Step-by-step explanation:
To solve this we will use cosine rule
Cosine rule
cos(A) =
suppose,
q = 6.25
s = 11.04
r = 13.19
angleQ =
= 30.58
angleR =
= 93.82
angleS =
= 56.63