A random sample of 84 eighth grade students' scores on a national mathematics assessment test has a mean score of 294. This test result prompts a state school administrator to declare that the mean score for the state's eighth-graders on this exam is more than 285. Assume that the population standard deviation is 31. At α = 0.10, is there enough evidence to support the administration's claim?
Write out the hypotheses statements below and identify the parameter of interest.
Which hypothesis represents the claim? Null Hypothesis (H0) or Alternative Hypothesis (Ha)
Clearly label a sketch with appropriate shading and calculate the test statistic.
Would you reject or fail to reject the null hypothesis? Circle one: Reject H0or Fail to Reject H0
Write a conclusion in the context of this problem.
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