solved:Z test A researcher wants to know whether seniors take more

  

Z test A researcher wants to know whether seniors take more or fewer prescription medications when they are treated by a specialist.From the census, she knows that seniors takem= 5 prescription drugs withs=3.Below are the data from 20 seniors. 47302351046 1203241525Step 1. Identify the given information.=sx=X =n =Step 2. State your hypotheses.a.Is it a one-tailed or two-tailed test?two-tailedb.Research:c.Statistical:Step 3. Set the significance level.a= .05.Step 4. Do the statistics.a.Compute the test statistic.b.Determine whether the value of the test statistic is in the critical region (hint: draw a picture)Step 5. Draw conclusions.a.Statistical:b.Substantive:Social SciencePsychology PSYC 310