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Ask any Statistics/Probability/Math Question

A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.





tutor3 : Hello Student, May I help you with your Math problems?
student : it is a statistic problem its a long question so let me write it out
student : A researcher predicts that listening to music while saving math problems will make a particular brain area more active. To test this a research participant has her brain scanned while listening to music and solving math problems and the brain area of interest has a percentage signal change of 58. From many previous studies with this same math procedure (but not listening to music) it is known that the signal change in this brain area is normally distributed with a mean of 35 and da standard deviation of 10.
student : a) using the 0.1 level what should the researcher conclude? Solve this problem explicity using all 5 steps of hypothesis testing and illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs) and the score of the sample distribution. b) Then explain your answer to someone who has never had a course in statistics (but who is familiar with standard deviation and z scores)
tutor3 : IT WILL TAKE A LOT TIME
student : ok
tutor3 : *****@tutorteddy.com. PLEASE SEND IN THIS EMAIL THE PROBLEM
student : ok I just did how long does it usually take>
student : ?
tutor3 : will send you by few hours
tutor3 : thanks
student : ok great thank you


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