Question

Pre-Activity Question: 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​ administrator's claim?

Write out the hypotheses statements below and identify the parameter of interest.

H_o: _________________________        

H_a: _________________________        

Which hypothesis represents the claim?   Circle one:   Null Hypothesis (H₀) or   Alternative Hypothesis (H_a)

Explain what type of hypothesis testing you will perform and whether conditions are met.

Test this hypothesis. (SHOW WORK!)

Clearly label a sketch with appropriate shading and calculate the test statistic (show formula and work)

Would you reject or fail to reject the null hypothesis? Circle one: Reject H₀or Fail to Reject H₀

Explain your choice:

Write a conclusion in the context of this problem.

Answer 1