You wish to test the following claim (Ha) at a significance level of α=0.005.       Ho:p=0.42       Ha:p>0.42 You obtain a sample of size n=558 in which there are 271 successful observations. For this test, you should use the (cumulative) binomial distribution to obtain an exact p-value. (Do not use the normal distribution as an approximation for the binomial distribution.)

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You wish to test the following claim (Ha) at a significance level of α=0.005.

      Ho:p=0.42
      Ha:p>0.42

You obtain a sample of size n=558 in which there are 271 successful observations. For this test, you should use the (cumulative) binomial distribution to obtain an exact p-value. (Do not use the normal distribution as an approximation for the binomial distribution.)

The p-value for this test is (assuming Ho is true) the probability of observing...

  • at most 271 successful observations
  • at least 271 successful observations



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
  • accept the null
  • fail to reject the null



As such, the final conclusion is that...

  • There is sufficient evidence to warrant rejection of the claim that the population proportion is greater than 0.42.
  • There is not sufficient evidence to warrant rejection of the claim that the population proportion is greater than 0.42.
  • The sample data support the claim that the population proportion is greater than 0.42.
  • There is not sufficient sample evidence to support the claim that the population proportion is greater than 0.42.
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