Answer: Sample size would be 296.
Step-by-step explanation:
Since we have given that
Standard deviation = 4.8 hours
Margin of error = 0.65 hours
At 98% level of confidence, z = 2.33
So, It becomes,
Hence, sample size would be 296.
Answer:
If there are 324 paving stones, it will cost $1539
Step-by-step explanation:
324 x 4.75 = 1539
Move the decimal point to the right two place values, and set the number over 100
0.95 = 95/100
95/100 is your fraction answer.
Simplify it if asked. 95/100 = 19/20
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Answer:
y=1/2x-6
Step-by-step explanation:
y-y1=m(x-x1)
y-(-1)=1/2(x-10)
y+1=1/2x-10/2
y=1/2x-5-1
y=1/2x-6
Answer:
circumference of the circle= 2πr
2πr= 52π
r= 52/2= 26 inches
diameter = 2r= 2×26=52 inches
option B
