Given information
Researchers interviewed street prostitutes in Canada and the United States. The mean age of the Canadian prostitutes upon entering prostitution was with a standard deviation of six. The mean age of the United States prostitutes upon entering prostitution was with a standard deviation of eight. Is the mean age of entering prostitution in Canada lower than the mean age in the United States?
Step-by-step explanation
The test is as follows:
means, standard deviations of the population are unknown in this independent sample.
Random variable:
Distribution:
In Canada, the average age of entry into prostitution is lower than in the United States.
Graph left tailed
Decision: do not reject .
Conclusion: At the level of significance, there is insufficient evidence from the sample data to conclude that the average age of entry into prostitution in Canada is lower than the average age in the United States.