A group of young businesswomen wish to open high fashion boutique in vacant store, but only if the average income of households in the area is at least $25,000. A random sample of 9 households showed following results.
$28,000 $24,000 $26,000 $25,000
$23,000 $27,000 $26,000 $22,000
$24,000
Employ statistical methods to advise the group on whether or not they must locate the boutique in this store. Use a .05 level of significance.