Confidence the mean reduction in time

Assignment Help Basic Statistics

Reference no: EM1320756

A pharmaceutical company wants to test the effectiveness of an experimental sleeping pill. An experiment is conducted over two nights, with 10 volunteers who have difficulties sleeping at night. On the first night, each of the ten persons is given the sleeping pill one hour before bedtime and the time needed to fall asleep is recorded. On the second night, the same persons are given a placebo in the form of a pill that looks exactly as the real one (without being told about it) and the time needed to fall asleep is again recorded. The times needed to fall asleep are assumed to follow a normal distribution. The results for the two nights for the ten volunteers are shown below:

Individual	A	B	C	D	E	F	G	H	I	J
Pill	4	7	10	15	6	13	6	11	1	11
Placebo	7	8	9	16	10	15	8	15	4	10

Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.

Reference no: EM1320756

Questions Cloud

Program to implement the calculations : Write down a program which has a function named presentValue which carry out this calculation. The function must accept future value, annual interest rate, and number of the years as arguments.

Multiple regression equation for list price of homes : A multiple regression equation for list price of homes in certain community in USA is=170,000 -850 X 1 + 28,000 X 2 , where X 1 signifies age in years and X 2 signifies number of rooms.

Significantly higher proportion of satisfied customer : At the 5% level of significance, can we infer that branch A has a significantly higher proportion of satisfied customers than branch B?

Find the difference in the gasolines & automobiles : Find the difference in the gasolines & automobiles

Confidence the mean reduction in time : Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.

Determining probability to get exactly one head : Determine the probability that Mary obtains exactly one Head.

Test for independence of attributes : Test for independence of attributes

Case study of bugusa : Shady town, U.S.A. has been plagued with a recent crime wave and it is well known to all the residents. The BUGusa, Inc. plant in Shady Town has experienced vandalized vehicles in its parking lot and some second shift employees have been robbed as..

Recognizing the asset and threat : Propose the reasonable values for items in the risk register for this asset and threat, and offer the justifications for your choices.

User Account

All Pages