If n=23, ¯xx¯(x-bar)=48, and s=3, construct a confidence
interval at a 98% confidence level. Assume the data came from a
normally distributed population.
Give your answers to one decimal place.
< μμ <
If n = 13, ¯xx¯ = 48, and s = 20, construct a confidence
interval at a 99% confidence level. Assume the data came from a
normally distributed population. Give your answers to three decimal
places.
answer ____ < μμ < ____ answer
Looking for two answer before and after.
If n=13, ¯(x-bar)=47, and s=2, construct a confidence interval
at a 99% confidence level. Assume the data came from a normally
distributed population. Give your answers to one decimal place
If n=11, ¯xx¯(x-bar)=43, and s=4, construct a confidence
interval at a 95% confidence level. Assume the data came from a
normally distributed population.
Give your answers to one decimal place.
If n=14, ¯xx¯(x-bar)=45, and s=4, construct a confidence
interval at a 99% confidence level. Assume the data came from a
normally distributed population.
Give your answers to one decimal place.
Karen wants to advertise how many chocolate chips are in each
Big Chip cookie at her bakery. She randomly selects a sample of 65
cookies and finds that the number of chocolate chips per cookie in
the sample has a mean of 7.1 and a standard deviation of 3.9. What...
A)
If n=15, ¯xx¯(x-bar)=37, and s=6, construct a confidence
interval at a 80% confidence level. Assume the data came from a
normally distributed population.
Give your answers to one decimal place.
B).
Insurance companies are interested in knowing the population
percent of drivers who always buckle up before riding in a car.
They randomly survey 394 drivers and find that 303 claim to always
buckle up. Construct a 84% confidence interval for the population
proportion that claim to always buckle...
If n=16, ¯x(x-bar)=32, and s=7, construct a confidence interval
at a 98% confidence level. Assume the data came from a normally
distributed population.
Give your answers to one decimal place.
< μ <
If n=25, x¯(x-bar)=50, and s=7, construct a confidence interval
at a 99% confidence level. Assume the data came from a normally
distributed population.
Give your answers to one decimal place.
< μ <
If n = 12, x bar = 43, and s = 9, construct a confidence
interval at a 98% confidence level. Assume the data came from a
normally distributed population. Give your answers to three decimal
places.
____ < μ < ____
If n=10, ¯ x (x-bar)=41, and s=16, construct a confidence
interval at a 80% confidence level. Assume the data came from a
normally distributed population.