Payment times of 100 randomly selected cus- tomers this

Payment times of 100 randomly selected cus- tomers this month had an average of 35 days. The standard deviation from this group was 2 days.

a. Build a 90% two-sided confidence interval on the mean payment time."

b. Build a 99% two-sided confidence interval on the mean payment time.

c. Is it possible that the average time is 30 days?"

A certain disease is found in one person in 5000 if a : a certain disease is found in one person in 5000. if a person does have the disease the test will show a positive

If the potential difference between a cloud and the ground : if the potential difference between a cloud and the ground is about 13 mv how much charge is transferred in a lightning

Find the magnitude and direction of the electric field that : find the magnitude and direction of the electric field that the 6.0 nc and the -3.0 nc charges together create at the

An electron initially traveling at a speed of 105 ms enters : an electron initially traveling at a speed of 105 ms enters a region where there is a uniform magnetic field of 2 t

Payment times of 100 randomly selected cus- tomers this : payment times of 100 randomly selected cus- tomers this month had an average of 35 days. the standard deviation from

A proton moving at a constant velocity of 106 ms enters a : a proton moving at a constant velocity of 106 ms enters a region of uniform magnetic field perpendicular to its

A canal narrows at rapids from width of 12 m to width of 4 : a canal narrows at rapids from width of 12 m to width of 4 m. depth of canal before rapids is 2.7m depth in rapids is

Find a symbolic expression for the ratio of the proton : an ion accelerated through 180.00 v has its potential energy decreased by potential energy of 5.76 x 10-17 j. calculate

List the sample space of this experiment define a random : a pair of fair six-sided dice are tossed independently of each other.a list the sample space of this experiment.b