Remaining Time: 2 hours, 47 minutes, 00 seconds. \\ Question Completion Status:

Question

Remaining Time: 2 hours, 47 minutes, 00 seconds. Question Completion Status: Question 15 1 points Save Answer random sample of m - 16 communities in western Kansas gave the following information for people under 25 years of age. x: Rate of hay fever per 1000 population for people under 25 106 124 81 124 96 113 112 112 135 81 122 123 101 109 115 108 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 98 104 88 97 107 94 113 112 109 100 127 76 88 102 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 a 0.05. What does the area of the sampling distribution corresponding to the P-value look like? A. The area of the sampling distribution is to the right of 1.795 B. The area of the sampling distribution is to the right of -1.795 C. The area of the sampling distribution is to the left of -1.795 D. The area of the sampling distribution is to the left of 1.795, E. The area of the sampling distribution is between -1.795 and 1.795. MacBook Air 7 8 9

Explanation / Answer

here as above test is one taled test and cause we are looking for if age group 50 has a lower rate of hey fever; it should be left tailed test:

therefore option C is correct,

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