What was the standard error
A sample of 344 subscribers of time magazine shows the mean time spent using the internet is 14.4 hours per week, standard deviation of 7.5 hours, 95%confidnece interval, what was the standard error?
A-0.40
B-2.47
C-0.66
D-0.022
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In Sunday's Indianapolis Star, there was an artcle talking about all the new grocery stroes opening in Indy. One of the reasons that Indianapolis is so competivtive is because of the amount we spend on groceries and our increased demand for health
During the first 18 minutes of a 1 hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be during the last 42 minutes of the trip to be if the car is to have an average of 21 m/s for the entire trip?
Suppose that a random sample of 41 state college students is asked to measure the length of their right foot in centimeters. A 95% confidence interval for the mean foot length for students at this university turns out to be (21.709,25.091). Which
Determine the temperature of the surface of the spacecraft when the radiation emitted equals the solar energy. Assume deep space temperature to be 2K.
The radiator releases heat to the room, and pressure drops to 100 kPa. Calculate the amount of heat transferred to the room. Draw the process on P-v diagram.
The gas undergoes a quasistatic process according to the equation 2 PV =constant. The final pressure is 1.0 bars. Determine the work done and the change in internal energy.
Each of the 110 students in a statistics class selects a random sample of 35 Quiz scores from a population of 5000 scores. They are not given the population mean and standard deviation. Using these data, each student then constructs a 90% confiden
Air, initially at 85 kPa, 900K and occupying a volume of 0.15 m3, undergoes two processes. Determine the total heat transfer for the two process.
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