Find the 95 confidence interval for the true mean decrease

Assignment Help Basic Statistics

Reference no: EM13614268

The addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4%. Several test samples were conducted with the following percentage decrease in drying time. Assume that the percentage decrease in drying time is normally distributed.

5.1

6.4

3.5

5.9

3.6

2.5

3.1

4.4

(a) Find the 95% confidence interval for the true mean decrease in the drying time based on this sample. (Give your answers correct to two decimal places.)

Reference no: EM13614268

Questions Cloud

If you assume the power plant operates on a carnot cycle : a power plant generates 150 mw of electrical power. it uses a supply of 1000 mw from a geothermal source and rejects

Based on the cost of the equipment and its lifetime it : the long life nursing home recently bought new equipment for thekitchen with the hopes of increasing food worker

You have 2 capacitors one with capacitance 103uf and the : you have 2 capacitors one with capacitance 10.3uf and the other of unknown capacitance. you connect the two capacitors

A bicycle rider rides from home along a highway and back : a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home

Find the 95 confidence interval for the true mean decrease : the addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4. several test

The flash unit in a camera uses a special circuit to step : the flash unit in a camera uses a special circuit to step up the 3.0 v from the batteries to 370 v which charges a

Wat was theauditors responsibility with respect to the : requireda. who isgeneral mills auditor? on what date did the auditor completeits audit work?b. what was

Calculate the isentropic work process 1-2s the actual work : air at mass flow rate of 10 kgs at 1 atm 300 k point1 enters an adiabatic compressor and exists at 8 atm 600 k point 2.

A shotputter throws the shot with an initial speed of 150ms : a shotputter throws the shot with an initial speed of 15.0ms at a 45.0 angle to the horizontal. calculate the

User Account

All Pages