ou wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.       Ho:μ=71.7Ho:μ=71.7       Ha:μ<71.7Ha:μ<71.7 You believe the population is normally distributed and you know the standard deviation is σ=16.7σ=16.7. You obtain a sample mean of ¯x=68x¯=68 for a sample of size n=72n=72. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =  What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =  The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null hypothesis accept the null hypothesis fail to reject the null hypothesis As such, the final conclusion is that... There is enough evidence to show that the population mean is not less than 71.7. There is not enough evidence to show that the population mean is not less than 71.7. There is enough evidence to show that the population mean is less than 71.7. There is not enough evidence to show that the population mean is less than 71.7.

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You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.

      Ho:μ=71.7Ho:μ=71.7
      Ha:μ<71.7Ha:μ<71.7

You believe the population is normally distributed and you know the standard deviation is σ=16.7σ=16.7. You obtain a sample mean of ¯x=68x¯=68 for a sample of size n=72n=72.

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic = 

What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value = 

The p-value is...
  • less than (or equal to) αα
  • greater than αα


This test statistic leads to a decision to...
  • reject the null hypothesis
  • accept the null hypothesis
  • fail to reject the null hypothesis


As such, the final conclusion is that...
  • There is enough evidence to show that the population mean is not less than 71.7.
  • There is not enough evidence to show that the population mean is not less than 71.7.
  • There is enough evidence to show that the population mean is less than 71.7.
  • There is not enough evidence to show that the population mean is less than 71.7.
 
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