Answer:
Step-by-step explanation:
Rewrite:
Cube both sides:
Divide both sides by 729:
Take the square root of both sides:
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Consider the distance formula d=16t^2 where d is the distance in feet that an object travels and t is the time in seconds that i
1 answer:
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We are given:
sample size= n = 45
sample mean = x = 61,300
sample standard deviation =18,246
Since the population standard deviation is not known we will use t distribution to find the confidence interval.
Confidence interval = 99%
Degrees of freedom= n - 1 = 45 – 1 = 44
Critical t value = 2.692
The 99% confidence interval will be:
Thus, the 99% confidence interval for the population mean is:
53978 to 68622
sample size= n = 45
sample mean = x = 61,300
sample standard deviation =18,246
Since the population standard deviation is not known we will use t distribution to find the confidence interval.
Confidence interval = 99%
Degrees of freedom= n - 1 = 45 – 1 = 44
Critical t value = 2.692
The 99% confidence interval will be:
Thus, the 99% confidence interval for the population mean is:
53978 to 68622