The prices of seven race cars sold last week are listed in the table below.
Price per
Race Car
Number of
Race Cars
$126,000
1
$140,000
2
$180,000
1
$400,000
2
$819,000
1
What is the median value of these race cars, in dollars? Show your work.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables