Changeset 33868 for other-projects/maori-lang-detection/mongodb-data/6table_nonProductSites1_manualShortlist.json

Timestamp:

2020-01-23T21:16:44+13:00 (4 years ago)

Author:

ak19

Message:

With the updated code for generating the maps from 6a and 6b manual site counts, generated corrected maps for num PAGES in MRI and num PAGES containing MRI and their geojson files. (Also some tabbing to 6table file).

File:

• other-projects/maori-lang-detection/mongodb-data/6table_nonProductSites1_manualShortlist.json (modified) (3 diffs)

other-projects/maori-lang-detection/mongodb-data/6table_nonProductSites1_manualShortlist.json

@@ -47 +47 @@
 
 
-
-
-
 --------------
 
-https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/find-sample-size/#CI1
-https://stats.stackexchange.com/questions/207584/sample-size-choice-with-binary-outcome
-https://www.statisticshowto.datasciencecentral.com/z-alpha2-za2/
-
-N (NZ pages where isMRI comes out true) = 4360
-solving for n, the sample size
-confidence level = 90%
-m, margin of error = 5%
-
-From the "z alpha/2" table, for 90% confidence, we get a z alpha/2 value of 1.6449 (or 1.645).
-
-Then the sample size, n, we need is = 1.6449^2 * 4360 / ( 1.6449^2 + (4 * 4359) * 0.05^2) = 255 (rounded up)
-
-
-For N = 681, 
-sample size n is = 1.6449^2 * 681 / ( 1.6449^2 + (4 * 680) * 0.05^2) = 194 (rounded up)
-
-
-sample size for NZ: 255 (90% confidence with 5% margine of error, Including a finite correction factor)
-sample size for US: 194
+    https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/find-sample-size/#CI1
+    https://stats.stackexchange.com/questions/207584/sample-size-choice-with-binary-outcome
+    https://www.statisticshowto.datasciencecentral.com/z-alpha2-za2/
+
+    N (NZ pages where isMRI comes out true) = 4360
+    solving for n, the sample size
+    confidence level = 90%
+    m, margin of error = 5%
+
+    From the "z alpha/2" table, for 90% confidence, we get a z alpha/2 value of 1.6449 (or 1.645).
+
+    Then the sample size, n, we need is = 1.6449^2 * 4360 / ( 1.6449^2 + (4 * 4359) * 0.05^2) = 255 (rounded up)
+
+
+    For N = 681, 
+    sample size n is = 1.6449^2 * 681 / ( 1.6449^2 + (4 * 680) * 0.05^2) = 194 (rounded up)
+
+
+    sample size for NZ: 255 (90% confidence with 5% margine of error, Including a finite correction factor)
+    sample size for US: 194
 
 */
@@ -77 +74 @@
 
 
-"_id","siteCount","numPagesInMRICount","numPagesContainingMRICount","URLs of pages detected as inMRI"
+"_id","siteCount containsMRI","numPagesInMRICount","numPagesContainingMRICount","URLs of pages detected as inMRI"
 "nz","176.0","4360","9641"
 "us","29.0","681","953"
@@ -90 +87 @@
 
 Total sites containing MRI: 216
+[of which 96 isMRI sites from NZ]
 Total pages detected as being in MRI: 5062
 Total pages detected as containing MRI sentences: 10706