Different types of long-lasting razor blades

Reference no: EM131834688

Consider again the conditions of Exercise 1. Discuss how the design of this experiment might be improved by considering how the 20 men who participate might be selected and also by considering the possible effect of having each man shave first with a blade of type B and then with a blade of type A.

Exercise 1

In an experiment to compare two different types of long-lasting razor blades, A and B, 20 men were asked to shave with a blade of type A for one week and then with a blade of type B for one week. At the end of this period, 15 men thought that blade A gave a smoother shave than blade B. and the other 5 men thought that blade B gave a smoother shave. Test the null hypothesis that blade A does not tend to give a smoother shave than blade B against the alternative that blade A tends to give a smoother shave than blade B.

Reference no: EM131834688

Questions Cloud

Generalize how well you feel the audience : Generalize how well you feel audience and purpose overall of all the Websites you have viewed are aligned. Speculate to the reason behind your generalization.

Suppose that a random sample : Suppose that a random sample of 100 observations is taken from a normal distribution for which the mean 8 is unknown and the variance is 1, and

Compare two different types of long-lasting razor blades : In an experiment to compare two different types of long-lasting razor blades, A and B, 20 men were asked to shave with a blade of type

What did you like and what did you find challenging : What did you like and what did you find challenging? What elements of the argument, on both sides, did you find unconvincing?

Different types of long-lasting razor blades : In an experiment to compare two different types of long-lasting razor blades, A and B, 20 men were asked to shave with a blade of type A for one week

Determine will the average recession last longer : Of the five lags, the last one only involves watching how things turned out. If there are only four important lags, and they last three months each.

Compare two different materials a and b : In an experiment to compare two different materials A and B that might be used for manufacturing the heels of men dress shoes

What other ethical dilemmas can you envision : What other ethical dilemmas can you envision? Tell your audience what to expect,and give them some realistic advice for coping.

Applying the kolmogorov-smirnov test for two samples : Consider again the data in Example I. Test the hypotheses (1) by applying the Kolmogorov-Smirnov test for two samples.

User Account

All Pages