A random sample of communities in western Kansas gave the following information for people under 25 years of age. : Rate of hay fever per 1000 population for people under 25 A random 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 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 . What is the value of the test statistic? Group of answer choices
Added by Courtney T.
Step 1
State the null and alternative hypotheses: Null hypothesis: The rate of hay fever for people over 50 is not significantly lower than the rate for people under 25. Alternative hypothesis: The rate of hay fever for people over 50 is significantly lower than the Show more…
Show all steps
Close
Your feedback will help us improve your experience
Jason Gerber and 89 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
A random sample of communities in certain state gave the following information for people under 25 years of age. x1: Rate of hay fever per 1000 population for people under 25 A random sample of regions in certain state gave the following information for people over 50 years old. x2: Rate of hay fever per 1000 population for people over 50 Assume that the hay fever rate in each age group has an approximately normal distribution. Use . What is the level of significance? 0.010 0.990 0.980 0.005 0.020
Md.Daniyal A.
A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age. x1: Rate of hay fever per 1000 population for people under 25 99 89 121 127 93 123 112 93 125 95 125 117 97 122 127 88 A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old. x2: Rate of hay fever per 1000 population for people over 50 93 108 100 95 112 88 110 79 115 100 89 114 85 96 Use a calculator to calculate x1, s1, x2, and s2. (Round your answers to four decimal places.) x1 = s1 = x2 = s2 = What is the value of the sample test statistic? (Test the difference μ1 − μ2. Round your answer to three decimal places.)
Chai S.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD