In: Math
Sixty eight 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 3.2%, respectively. (You may find it useful to reference the appropriate table: chi-square table or F table)
Vacancy Rate | Frequency | |||
Less than 6 | 9 | |||
6 up to 9 | 20 | |||
9 up to 12 | 27 | |||
12 or more | 12 | |||
Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)