subject
Mathematics, 30.10.2019 01:31 baidentheodore9750

Many people take ginkgo supplements advertised to improve memory. are those over the counter supplements effective? a study was conducted where 104 randomly selected adults were given 40 mg of gingko and 115 randomly selected adults were given a placebo pill. each group consumed the supplement 3 times/day. at the end of six weeks a test was done of short term memory. the average score for those taking the gingko pill was 5.6 with a standard deviation of .6. the average score for those taking the placebo pill was 5.5 with a standard deviation of .6. based on these results, is there evidence that gingko is effective in improving short term memory. conduct this hypothesis test at a .01 significance level. what is the value of the test statistic for this hypothesis test? (round to hundredths place)

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:00
The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?
Answers: 2
question
Mathematics, 21.06.2019 22:00
Determine which postulate or theorem can be used to prove that lmn =nmo
Answers: 3
question
Mathematics, 21.06.2019 22:30
The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.
Answers: 2
question
Mathematics, 21.06.2019 23:00
Find the dimensions of the circle. area = 64π in.² r= in.
Answers: 1
You know the right answer?
Many people take ginkgo supplements advertised to improve memory. are those over the counter supplem...
Questions
question
Mathematics, 12.03.2020 05:50
question
Mathematics, 12.03.2020 05:50
question
Mathematics, 12.03.2020 05:51
question
History, 12.03.2020 05:51
question
Mathematics, 12.03.2020 05:51
question
History, 12.03.2020 05:51