Fifty cities provided information on vacancy rates (in percent) in local apartments in the following frequency distribution. The sample mean and the sample standard deviation are 9% and 3.6%, respectively.
![1266_apartments in the frequency distribution.png](https://secure.tutorsglobe.com/CMSImages/1266_apartments in the frequency distribution.png)
Apply the goodness-of-fit test for normality at the 5% significance level. Do the sample data suggest that vacancy rates do not follow the normal distribution?