Answer:the correct answer should be d.2.07
Step-by-step explanation:
Answer:
Gas left after 5 hours is: 10 gallons
Gas left after t hours is : sorry I don't know
Step-by-step explanation:
Subtract 2 everytime you count an hour
Hope this helps
Answer:
-55
Step-by-step explanation:
It would be -55 because the exponent is 4. So, that would leave -55 to be the right answer.
Answer:
Step-by-step explanation:
We are given the following in the question:
Significance level = 0.01
Width of interval = 0.1
Population variance = 
We have to find the sample size so that the width of the confidence interval is no larger than 0.1

Formula for sample size:

where E is the margin of error. Since the confidence interval width is 0.1,

Putting these values in the equation:

So, the above expression helps us to calculate the sample size so that the width of the confidence interval is no larger than 0.1 for different sample variances.