An athletics coach claims that the amount of illegal substances in his supplements should be normally distributed with a mean of 10 milligrams and standard deviation of 2 milligrams. Obviousi}r for the purposes of avoiding detection and also maximisation of performance, his country's Olympic committee would like to know if this is true. Use a 5% level of signicance. They have taken a random sample of 8 tablets and tested them: Tabiet Illegal Substance(mg) 1 4.3 2 3.2 3 8.3 4 1GB