Question
I only need word problem solved. thx.
Online mapping tools are useful for translating different types of geographical knowledge to the public. Zhou et al. (2016) designed a novel online-map platform and tested its utility in translating causal knowledge, which is knowledge about the causes and factors that influence a geographical phenomenon. Sixty-two student participants were selected at random, and the students were randomly divided into two groups. The students in group I were provided access to the map platform, and the students in group 2 were provided with a handout containing the same geographic knowledge. Each of the students were tested on their knowledge after 30 minutes of studying. The table PopulationPopulation Sample Sample Sample standard Standard error SEI-0292228 summarizes the results from each group Population deviation estimate description Online-map platform Handout size n-31=20774 19451=1.627056 n2=31x2= 18.677419 s2= 2.427442 mean mean ! SE2=0.435981 df = 52.429045 The population distributions and population standard deviations of scores on tests of causal knowtedge are not known. However, the sample data were similarly shaped, so the relatively large sample sizes imply that a two-sample t-lest for independent samples with unknown population standard deviations can be used to lest the hypothesis //.#1 # 2 against the null hypothesis Ho: | = 2. First, calculate the positive value of the two-sample E-statistic for the difference in two independent means (group I minus group 2). Give your answer precise to four decimal places = : 3.9949
Explanation / Answer
The decision is to reject the null hypothesis at the significance level of alpha = 0.01. These is sufficient evidence to conclude that the amont of causal knowledge gained by online map plat form is difference the amount of causal knowledge gained by Hoandout, on average