obtains a sample of n = 16 participants and has each person take the herbal supplements every day for 90 days . At the end of the 90 days , each...
please help question 6 chapter 8 solving problems thanks!
obtains a sample of n = 16 participants and has eachperson take the herbal supplements every day for90 days . At the end of the 90 days , each person takesa standardized memory test . For the general popula -tion , scores from the test form a normal distributionwith a mean of M = 50 and a standard deviation of0 = 12. The sample of research participants had anaverage of M = 54 .2 . Assuming a two- tailed test , state the null hypoth -esis in a sentence that includes the two variablesbeing examined .6. Using the standard 4 - step procedure , conduct atwo - tailed hypothesis test with a = . 05 to evaluatethe effect of the supplements
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