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Question: Test Statistics. In Exercises 13-16, refer to the exercise identified and find the value of the t…



Question: Test Statistics. In Exercises 13-16, refer to the exercise identified and find the value of the t...

Show transcribed image text Test Statistics. In Exercises 13-16, refer to the exercise identified and find the value of the test statistic. (Refer to Table 8-2 on page 389 to select the correct expression for evaluating the test statistic.) ta', 14, Exercise 6 "Cell Phone" 6. Cell Phone Claim: Fewer than 95% of adults have a cell phone. In a Marist poll of 1128 adults, 87% said that they have a cell phone. 7: Parameter Sampling Distribution Normal (z) Requirements np 5 and nq Test Statistic Proportion p 5 β-p σ not known and normally t–μ Mean μ distributed population or σnot known and n > 30 σ known and normally distributed population or σknown and n > 30 Strict requirement: normally distributed population Vn Normal (z) Mean μ x2 St.dev. σ or variance σ2 PiC.cOLLAGE

Test Statistics. In Exercises 13-16, refer to the exercise identified and find the value of the test statistic. (Refer to Table 8-2 on page 389 to select the correct expression for evaluating the test statistic.) ta', 14, Exercise 6 "Cell Phone" 6. Cell Phone Claim: Fewer than 95% of adults have a cell phone. In a Marist poll of 1128 adults, 87% said that they have a cell phone. 7: Parameter Sampling Distribution Normal (z) Requirements np 5 and nq Test Statistic Proportion p 5 β-p σ not known and normally t–μ Mean μ distributed population or σnot known and n > 30 σ known and normally distributed population or σknown and n > 30 Strict requirement: normally distributed population Vn Normal (z) Mean μ x2 St.dev. σ or variance σ2 PiC.cOLLAGE

  

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