subject
Mathematics, 05.05.2020 22:37 ciya12

A random sample of n1=16 communities in western Kansas gave the following information for people under 25 years of age. x 1 : Rate of hay fever per 1000 population for people under 25 123 125 106 133 108 96 121 102 102 121 122 98 122 145 109 121 A random sample of n 2 =14 regions in western Kansas gave the following information for people over 50 years old. x 2 : Rate of hay fever per 1000 population for people over 50 101 100 83 106 88 90 106 110 111 109 99 110 84 83 Assume that the hay fever rate in each age group has an approximately normal distribution. Assume also that the two populations have equal standard deviations for finding df; and that the t-value is 3.890. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use a 5% level of significance. Find (or estimate) the P-value.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 19:30
Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.
Answers: 1
question
Mathematics, 21.06.2019 20:00
Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.
Answers: 2
question
Mathematics, 21.06.2019 21:20
In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?
Answers: 2
question
Mathematics, 22.06.2019 00:30
Ineed to find the answer to number 2
Answers: 2
You know the right answer?
A random sample of n1=16 communities in western Kansas gave the following information for people und...
Questions
Questions on the website: 13722363