Listed in the data table are amounts of strontium-90 (in millibecquerels, or mBq, per gram of calcium) in a simple random sample of baby teeth obtained from residents in two cities. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Use a 0.05 significance level to test the claim that the mean amount of strontium-90 from city #1 residents is greater than the mean amount from city #2 residents. Click the icon to view the data table of strontium-90 amounts. What are the null and alternative hypotheses? Assume that population 1 consists of amounts from city #1 levels and population 2 consists of amounts from city #2. OB. Ho: ₁₂ H₁: H₁>#₂ OA. Ho: H₁ H2₂2₂ H₁: H₁> #2 OC. Ho: #₁ = ¹₂ H₁:₁₂ More Info City #1 106 86 121 118 101 104 213 130 290 100 277 145 City #2 117 63 100 85 87 107 110 111 143 133 101 209 D - X OD. Ho: ₁₂ H₁: ₁₂

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