Answer:
answer is a
the height of the water increases 2 inches per minute
Answer:
Step-by-step explanation:
Confidence interval is written in the form, sample mean ± margin of error
The sample mean is an estimator for the population mean. The confidence level is used to express how confident we are that the population mean is within the calculated confidence interval. The lower limit of the given confidence interval is 2.619 hours/day while the upper limit of the confidence interval is 3.401 hours/day
Therefore, the INVALID interpretations of the 95% confidence interval are
A. About 95% of all Cal Poly students spend between 2.619 and 3.401 hours/day watching TV.
B. There is a 95% chance that, on average, Cal Poly students spend between 2.619 and 3.401 hours/day watching TV.
D. In the long run, 95% of the sample means will be between 2.619 and 3.401 hours.
E. None of the above.
Answer: 148
Step-by-step explanation:
Answer:
Par 1) 19.10 inches
Part 2) 39 days
Step-by-step explanation:
we know that
Asheville
47.71 in
124 days
Wichita
28.61 in
85 days
Part 1) About how many more inches of rain did Asheville get than Wichita?
In this part subtract the number of inches of rain in Wichita from the number of inches of rain in Asheville
so

Part 2) About how many more days did it rain in Asheville than Wichita?
n this part subtract the number of days of rain in Wichita from the number of days of rain in Asheville
so

Answer:

And replacing we got:

The probability that a randomly selected barber needs at least 14 minutes to complete the haircut is 0.5714
Step-by-step explanation:
We define the random variable of interest as x " time it takes a barber to complete a haircuts" and we know that the distribution for X is given by:

And for this case we want to find the following probability:

We can find this probability using the complement rule and the cumulative distribution function given by:

Using this formula we got:

And replacing we got:

The probability that a randomly selected barber needs at least 14 minutes to complete the haircut is 0.5714