A city manager made the graph below to represent the number of passengers that city buses can carry, where the number of passeng
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<h2>Answer with explanation:</h2>
As per given , we have
, n=331
Critical value for 90% Confidence interval :
a) Confidence interval :
Hence, a 90% confidence interval for the proportion of Americans who decide to not go to college because they cannot a ord it :
b) Margin of error : E=1.5%=0.015
Formula for sample size :
For p =0.48 , we have
Hence, the required sample size to survey = 3002
Answer:
The required equation is .
Step-by-step explanation:
Consider the provided information.
The Initial value of poster = $ 18
After 1 year amount of increase = $ 20.70
With the rate of 15% = 0.15
Let future value is y and the number of years be x.
Now verify this by substituting x=1 in above equation.
Which is true.
Hence, the required equation is .