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.
Ho =
Ha. =
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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