Given: A nutrition store in the mall is selling \"Memory Booster\" which is a co

Question

Given: A nutrition store in the mall is selling "Memory Booster" which is a concoction of herbs and minerals that is intended to improve memory performance. To test the hypothesized memory enhancement of the herbal mix, the now famous drug researcher, Dr. Mindfog, obtains a sample of 15 adult volunteers and has each person take the suggested dosage each day for 4 weeks. At the end of the four-week period, each individual takes a standardized memory test. In the general adult population, the standardized memory test is known to have a mean of mu = 10, where higher scones demonstrate better performance on the test of memory. The scores for the 15 volunteers are: 12, 11, 13, 15, 8, 11, 13, 15, 10, 9, 10, 16, 15, 11, 14 Which hypothesis test needs to be employed here? z test one-sample t test dependent t test independent t test Pearson's r

Explanation / Answer

There are n=15 adult volunteers, the sample size is less than thirty, n<30 and population standard deviation is unknown. Assume the general adult population is normally distributed, the sample is representative of the population. Therefore, use 1-sample t test.

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.