Find the Standardized Test Statistic, Z, to Test the Claim $\mathrm { p } _ { 1 } < \mathrm { p } _ { 2 }$

question 122

Multiple Choice

Find the standardized test statistic, z, to test the claim that $\mathrm { p } _ { 1 } < \mathrm { p } _ { 2 }$ Assume the samples are random and independent.
Sample statistics: $\mathrm { n } _ { 1 } = 550 , \mathrm { x } _ { 1 } = 121 , \text { and } \mathrm { n } _ { 2 } = 690 , \mathrm { x } _ { 2 } = 195$

• A)-2.513
• B)-2.132
• C)-0.985
• D)1.116

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