z = (210-244.6)/29/3
z =
A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds.
What is the null hypothesis and the alternative hypothesis, what is the right formula and calculate the test statistic.
1 answer
1 answer