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. 2020 Nov 26;10:20693. doi: 10.1038/s41598-020-77275-9

Table 5.

Predictability analysis by state.

β0 β1 β2
USA − 0.0509 (0.4339) [− 0.1172] − 0.7506*** (0.2197) [− 3.4173] − 0.0014 (0.0169) [− 0.0831]
AL 0.8944*** (0.2176) [4.1099] − 0.5961*** (0.1160) [− 5.1383] − 0.0413*** (0.0070) [− 5.8850]
AK − 1.4528*** (0.2003) [− 7.2539] − 0.2449** (0.1006) [− 2.4341] 0.0663*** (0.0087) [7.6030]
AZ − 1.4183*** (0.1309) [− 10.8362] − 0.2429*** (0.0817) [− 2.9745] 0.0637*** (0.0049) [12.8777]
AR − 0.2565 (0.4658) [− 0.5507] 0.2785 (0.2531) [1.1004] 0.0023 (0.0124) [0.1825]
CA − 1.4274*** (0.0936) [− 15.2521] − 0.1634*** (0.0539) [− 3.0325] 0.0642*** (0.0046) [13.8481]
CO − 0.9688*** (0.1916) [− 5.0561] 0.3007 (0.2587) [1.1623] 0.0290*** (0.0074) [3.9132]
CT − 1.7866*** (0.0654) [− 27.3353] − 0.1645*** (0.0470) [− 3.4989] 0.0782*** (0.0026) [30.6221]
DE − 2.0415*** (0.4639) [− 4.4003] − 0.2687 (0.2446) [− 1.0987] 0.0715*** (0.0110) [6.4873]
DC − 1.3077*** (0.1980) [− 6.6064] − 0.1548* (0.0849) [− 1.8228] 0.0578*** (0.0094) [6.1513]
FL − 1.5483*** (0.0766) [− 20.2209] − 0.2128*** (0.0431) [− 4.9412] 0.0715*** (0.0024) [29.3170]
GA − 1.5727*** (0.0808) [− 19.4690] − 0.2047*** (0.0570) [− 3.5898] 0.0721*** (0.0042) [17.2658]
HI − 1.6732*** (0.0873) [− 19.1647] − 0.2083*** (0.0470) [− 4.4343] 0.0758*** (0.0041) [18.3027]
ID − 1.8929*** (0.1465) [− 12.9167]] − 0.2686*** (0.0663) [− 4.0507] 0.0866*** (0.0067) [12.8631]
IL − 1.4466*** (0.1404) [− 10.3063] 0.3943*** (0.0707) [5.5764] 0.0680*** (0.0056) [12.2022]
IN − 1.4674*** (0.2157) [− 6.8020] 0.0977 (0.1624) [0.6018] 0.0693*** (0.0065) [10.7392]
IA − 1.5912*** (0.1402) [− 11.3507] − 0.2957*** (0.0733) [− 4.0346] 0.0732*** (0.0042) [17.3342]
KS − 1.5579*** (0.2298) [− 6.7799] 0.0463 (0.1101) [0.4204] 0.0635*** (0.0106) [5.9774]
KY − 1.5530*** (0.1396) [− 11.1222] − 0.2415*** (0.0599) [− 4.0291] 0.0719*** (0.0062) [11.5292]
LA − 1.6432*** (0.0602) [− 27.2763] − 0.2050*** (0.0357) [− 5.7381] 0.0751*** (0.0026) [28.6534]
MD − 1.1066*** (0.2339) [− 4.7306] 0.1135 (0.1008) [1.1255] 0.0550*** (0.0088) [6.2834]
MA − 1.6424*** (0.0771) [− 21.3061] − 0.1757*** (0.0538) [− 3.2668] 0.0742*** (0.0034) [21.8651]
MI − 1.7657*** (0.0813) [− 21.7133] − 0.1884*** (0.0406) [− 4.6375] 0.0800*** (0.0032) [25.2349]
MN − 1.6085*** (0.0773) [− 20.7963] − 0.2344*** (0.0521) [− 4.4970] 0.0728*** (0.0027) [26.9966]
MS − 1.3047*** (0.2959) [− 4.4088] 0.1773 (0.1600) [1.1086] 0.0570*** (0.0082) [6.9200]
MO − 1.5382*** (0.0883) [− 17.4271] − 0.2326*** (0.0478) [− 4.8610] 0.0718*** (0.0051) [14.0987]
NE − 1.4875*** (0.1909) [− 7.7908] − 0.2192*** (0.0746) [− 2.9375] 0.0717*** (0.0063) [11.3935]
NV − 1.6778*** (0.0862) [− 19.4683] − 0.1872*** (0.0348) [− 5.3846] 0.0763*** (0.0037) [20.4946]
NH − 1.6586*** (0.0723) [− 22.9526] − 0.1515*** (0.0365) [− 4.1562] 0.0741*** (0.0025) [30.0037]
NJ − 1.8518*** (0.2428) [− 7.6277] − 0.2395 (0.2427) [− 0.9867] 0.0688*** (0.0060) [11.3949]
NM − 1.2414*** (0.1640) [− 7.5679] − 0.1188 (0.0803) [− 1.4805] 0.0593*** (0.0066) [8.9371]
NY − 1.2201*** (0.0468) [− 26.0596] − 0.1482*** (0.0562) [− 2.6358] 0.0482*** (0.0043) [11.2916]
NC − 1.6575*** (0.0953) [− 17.3914] − 0.1613*** (0.0476) [− 3.3848] 0.0722*** (0.0038) [18.8471]
OH − 1.8408*** (0.1464) [− 12.5751] − 0.1758** (0.0750) [− 2.3436] 0.0790*** (0.0048) [16.3817]
OK − 1.7038*** (0.0544) [− 31.2986] − 0.2463*** (0.0318) [− 7.7497] 0.0767*** (0.0026) [29.5090]
OR − 0.7953*** (0.2019) [− 3.9392] 0.4395*** (0.1362) [3.2257] 0.0293*** (0.0069) [4.2697]
PA − 1.3917*** (0.1279) [− 10.8769] − 0.1845** (0.0758) [− 2.4348] 0.0716*** (0.0041) [17.5561]
RI − 1.4924*** (0.0752) [− 19.8418] − 0.1461*** (0.0408) [− 3.5844] 0.0588*** (0.0049) [12.1036]
SC − 1.2889*** (0.0941) [− 13.7030] − 0.1816*** (0.0513) [− 3.5395] 0.0520*** (0.0069) [7.5216]
SD − 1.1230*** (0.2939) [− 3.8212] 0.2815** (0.1388) [2.0277] 0.0537*** (0.0084) [6.4280]
TN − 1.5098*** (0.0658) [− 22.9294] − 0.2157*** (0.0524) [− 4.1179] 0.0676*** (0.0020) [33.1730]
TX − 1.4766*** (0.3041) [− 4.8557] 0.2749 (0.1903) [1.4442] 0.0660*** (0.0077) [8.5342]
UT − 1.4381*** (0.1399) [− 10.2768] − 0.1586** (0.0723) [− 2.1944] 0.0720*** (0.0069) [10.3640]
VT − 1.5359*** (0.1854) [− 8.2848] − 0.2499*** (0.0848) [− 2.9476] 0.0770*** (0.0081) [9.5352]
VA − 1.5878*** (0.2504) [− 6.3400] − 0.3147*** (0.1021) [− 3.0837] 0.0767*** (0.0106) [7.2484]
WA − 1.3476*** (0.1540) [− 8.7488] − 0.2236** (0.1007) [− 2.2212] 0.0660*** (0.0101) [6.5118]
WI − 1.3407*** (0.0992) [− 13.5142] − 0.2143*** (0.0698) [− 3.0711] 0.0618*** (0.0053) [11.6287]

The numbers in parentheses report the standard errors; the t-statistics are given in brackets.

***, ** and * indicate statistical significance at the 0.01, 0.05 and 0.1 levels, respectively. The corresponding critical values are 2.575, 1.96 and 1.645.