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. City_#1 City_#2108     11786     53121    100116    85101    83104   107213   110113    111290   142100 133266 101145 209 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? The test statistic is? The​ P-value is? State the conclusion for the test?

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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.

City_#1 City_#2
108     117
86     53
121    100
116    85
101    83
104   107
213   110
113    111
290   142
100 133
266 101
145 209

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?

The test statistic is?

The​ P-value is?

State the conclusion for the test?

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