Arandom sample of regions in western kansas gave the following information for people over 50 years old. rate of hay fever per 1000 population for people over 50 87 103 100 98 105 98 106 117 83 105 99 86 117 105 assume that the hay fever rate in each age group has an approximately normal distribution. do the data indicate that the age group over 50 has a lower rate of hay fever? use state the null and alternate hypotheses.