In: Statistics and Probability
18517 | 150576 | 5637 |
3315 | 33798 | 2243 |
2826 | 31921 | 1212 |
2018 | 27231 | 923 |
1845 | 11091 | 383 |
1666 | 7973 | 330 |
1401 | 2773 | 293 |
1340 | 2660 | 283 |
1019 | 1285 | 282 |
Row 1: confirmed cases CA row 2: confirmed cases Row 3: confirmed cases WA
Your assignment is to analyze the relationship between two sets of scores using the inferential statistical procedure of an independent two sample t-hypothesis test. Using StatCrunch SPSS, you must calculate and analyze both descriptive and inferential statistics data. The data collection in analysis for this final project is aligned with concepts learned during several weeks of this course.
The data you are being provided with relates to information collected pertaining to the current COVID-19 pandemic. You are being asked to analyze this “case” data derived from 3 states California, New York, and Washington state, each row within the states represent confirmed cases by 9 (n=9) counties. The data from each state identifies the actual number of confirmed COVID-19 cases as of late April 2020, your role as a behavioral research assistant is to analyze the data from your choice of only two of these states (choose and compare CA: to either NY or WA state) and demonstrate whether or not there is a statistical difference in the number of identified cases between your choice of two states. Critical elements or parts of this final project include knowledge of; descriptive statistics, the statistical cycle of inquiry (inferential set up), and inferential statistics.
we choose NY(row 2) and WA (row 3)
Descriptive statistics
There seems to be difference in standard deviation , hence we choose unequal variance
Using Excel
data -> data analysis -> t-Test: Two-Sample Assuming Unequal Variances
TS = 1.824
p-value = 0.1056
since p-value
> alpha, we fail to reject the null hypothesis
we conclude that there is not significant difference in means