Assess the impact of an event on a population

Reference no: EM13241093

Assess the impact of an event on a population. I ran a survey before the event and then I ran the survey after the event. The collected responses matched between prior to the event and after. I used paired t-test to determine if the event had a positive impact or a negative impact on the audience. Is it valid to calculate the p-value and based on the results and the averages for pre and post decide if the event had a positive impact or a negative impact? The sample size is about 60. How can I determine if I need the one tail or the two tailed test?

Reference no: EM13241093

Questions Cloud

Cultures of mesoamerica-south america and egypt : Speculate on the similarities in the monuments to the Sun god in cultures of Mesoamerica, South America, and Egypt.

Please explain how to work backward on a normal : Given a mean score of 70, standard deviation of 15,percentile of 23.Find the Z score,T score and raw score.

Differing business practices and fur trading styles : Compare and contrast the differing business practices and fur trading styles of the Hudson’s Bay Company and the Northwest Company down to the merger of the two in 1821.

What should the sample size really be to get an accurate : I run various A/B Split tests online. I always set all my tests for 10,000 visitors so page A and B are each equally rotated 5,000 times.

Assess the impact of an event on a population : Assess the impact of an event on a population. I ran a survey before the event and then I ran the survey after the event. The collected responses matched between prior to the event and after. I used paired t-test to determine if the event had a posit..

Nature of industrial relationship between workers-employers : How did the process of industrialization affect the nature of the industrial relationship between workers and their employers?

Do you have an opinion on this question : I want to know whether the StdError of the fitted score (SEYhat) can be legitimately interpreted normally for N=1 subject, with only one plotted Y score for each X value.

When estimating the mean of a population how large must the : When estimating the mean of a population, how large must the sample be in order that the 95% error margin is 1/8 the standard deviation?

A machine produces 3 inch nails. a sample of 100 nails is : A machine produces 3 inch nails. A sample of 100 nails is selected, and it is found that 25 are shorter than 3 inches. Find the 95% confidence interval on the proportion of all such nails that are shorter than 3 inches.

User Account

All Pages