Heip 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. Complete parts (a) and (b) below. E Click the icon to view the data table of strontium-90 amounts. a. Use a 0.01 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. 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. B. Ho: H1 H2 O A. Ho: H1 SH2 OC. Ho: H1 H2 H: H1> H2 D. Ho: H1=H2 H,: H1 > H2 The test statistic is (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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City # 1
108
City #2
117
86
85
121
100
120
85
101
82
104
107
213
110
124
111
290
115
100
133
326
101
145
209
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Transcribed Image Text:More Info City # 1 108 City #2 117 86 85 121 100 120 85 101 82 104 107 213 110 124 111 290 115 100 133 326 101 145 209 Print Done
EQuestion Help
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. Complete parts (a) and (b) below.
E Click the icon to view the data table of strontium-90 amounts.
a. Use a 0.01 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.
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.
O B. Ho H1 H2
O A. Ho: H1 SH2
H: H1 #H2
D. Ho: H1= H2
O C. Ho: H1 #2
H: H1> H2
H4: H1 > H2
The test statistic is
(Round to two decimal places as needed.)
Transcribed Image Text:EQuestion Help 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. Complete parts (a) and (b) below. E Click the icon to view the data table of strontium-90 amounts. a. Use a 0.01 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. 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. O B. Ho H1 H2 O A. Ho: H1 SH2 H: H1 #H2 D. Ho: H1= H2 O C. Ho: H1 #2 H: H1> H2 H4: H1 > H2 The test statistic is (Round to two decimal places as needed.)
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