Other files provided with this exam: 1. Equations.pdf 2. Tables.pdf Questions in the final may refer to these other files. Instead of using the z-table in reverse to get a z-value from an area, here is a quick- reference table for the most commonly used values: if a = Area in One Tail a (1-tailed) 0.005 0.01 0.025 0.05 0.10 if a = Area in Two Tails a(2-tailed) 0.01 0.02 0.05 0.10 0.20 c = Confidence Level C 99% 98% 95% 90% 80% Zc = Critical Z-Value (negative if left-tailed, +- if two-tailed), Za/2 for confidence interval Zc/ Za/2 2.576 2.326 1.960 1.645 1.282 When complete, scan to a single PDF file and submit on D2L. Be sure to read the instructions carefully before answering a question. Every small detail asked for in the question must be provided. If a problem asks you to solve a problem in a certain way, it must be solved in that way. If stuck on a question, look through the equation sheet for ideas (although most of the problems can be solved with technology, this might help you think about what type of problem it is). Also look through old worksheets for similar problems. You can simply reject or fail to reject Ho. However, for a final conclusion to a hypothesis test, it must be of the form: At the _ level of significance, there (is) /(is not) sufficient evidence to (reject)/(support) the claim that . (and then write out the entire claim in words, not symbols, do not just say "the claim").B. Researchers investigated the issue of race and equality of access to clinical trials. The table given in (a) shows the population distribution and the numbers of participants in clinical trials involving lung cancer. At a significance level of 0.01, using a P-value test, test the claim that the distribution of clinical trial participants fits well with the population distribution. Use the following steps: (a) Complete the expected column in the table below, use two decimal places for E. Expected Observed Expected Race/ethnicity Percentage (p) Frequency (0) Frequency (E)=np White (non-Hispanic) 75.6% 3855 Hispanic 9.1% 60 Black 10.8% 316 Asian/Pacific Islander 3.8% 54 American Indian/Alaskan Native 0.7% 12 n=4297 HINT: As a double-check, add up the expected frequency column, it should also total n (within a small rounding error) (b) What is the precise name of the test we will be using and what is alpha? Test: (c) Write the equation that would be used to find the test statistic 2 (but don't evaluate it), and calculate d.f. x = d.f.= (d) Find x" and P (with technology) x = P = (e) Write the null & alternate hypotheses. Ho: H1: Is Ho or Hi equivalent to the original claim (pick one): (f) Do you "reject" or "fail to reject" the null hypothesis? Why? (show P-value test) (g) What is your conclusion about the original claim? IT MUST BE WRITTEN IN EXACTLY THE FORM SPECIFIED ON THE FIRST PAGE OF THIS DOCUMENT