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You should think of a dependent t as being a single-sample t on the difference scores. This gives it 1 less than the number of differences as the df.
Say you have before/after scores for 10 people. You have 20 scores, but the test is done on the differences, of which you have 10 and that means 9 df. You typically obtain df from n - 1, as you do in this case, you just need to be careful to think of this as the number of pairs and not scores.
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Does nicotine mask marijuana in a drug test?
No. A tobacco test looks for.. well... tobacco. A marijuana drug test looks for THC.
For anyone who has taken AP Biology or has studied out of the Campbell Biology 7e book Is the 1st semester exam made from the same questions as the previous tests or are they new questions?
The 1st semester exam typically includes a mix of questions from previous tests as well as new questions to assess a broader range of knowledge and understanding. This approach helps ensure that students have a comprehensive grasp of the material covered throughout the semester.
How do you use a light tester on car battery to see if there is draw on current with ignition off?
with the vehicle off, remove the negative battery cable from the battery terminal. wait for half an hour. this will give your computer sufficient time to power down. this is important. there a multiple size test lights to indicate different levels of amperage. with a cheap one from a thrift store this will indicate any significant draw. hook the test light to the negative cable and the other end of the test light to the negative post. essentially, you have just completed the circuit that you previously broke when you took the cable off. if there is a draw on the system, the light will come on. if your light is very bright it is a generic indsication that the draw is a significant amount. you can pull one fuse at a time until the light goes out. when you find the right circuit, the ttest light will go out. then you can at least know that it is the taillights, or interior lights, ore whatever that fuse controls. keep in mind that if you open the door on your car, the interior light s will come on and the test light will light up bright. this is a normal draw. sometimes you have to depress the button thaqt turns the interior lights on when the door is opened. this is a basic and not in depth way to check for draws. this will not show parasitic draws. but hopefully this will get you started
Excel has more than 400 functions?
333: 1 ABS 2 ACCRINT 3 ACCRINTM 4 ACOS 5 ACOSH 6 ADDRESS 7 AMORDEGRC 8 AMORLINC 9 AND 10 AREAS 11 ASC 12 ASIN 13 ASINH 14 ATAN 15 ATAN2 16 ATANH 17 AVEDEV 18 AVERAGE 19 AVERAGEA 20 BAHTTEXT 21 BESSELI 22 BESSELJ 23 BESSELK 24 BESSELY 25 BETADIST 26 BETAINV 27 BIN2DEC 28 BIN2HEX 29 BIN2OCT 30 BINOMDIST 31 CEILING 32 CELL 33 CHAR 34 CHIDIST 35 CHIINV 36 CHITEST 37 CHOOSE 38 CLEAN 39 CODE 40 COLUMN 41 COLUMNS 42 COMBIN 43 COMPLEX 44 CONCATENATE 45 CONFIDENCE 46 CONVERT 47 CORREL 48 COS 49 COSH 50 COUNT 51 COUNTA 52 COUNTBLANK 53 COUNTIF 54 COUPDAYBS 55 COUPDAYS 56 COUPDAYSNC 57 COUPNCD 58 COUPNUM 59 COUPPCD 60 COVAR 61 CRITBINOM 62 CUMIPMT 63 CUMPRINC 64 DATE 65 DATEVALUE 66 DAVERAGE 67 DAY 68 DAYS360 69 DB 70 DCOUNT 71 DCOUNTA 72 DDB 73 DEC2BIN 74 DEC2HEX 75 DEC2OCT 76 DEGREES 77 DELTA 78 DEVSQ 79 DGET 80 DISC 81 DMAX 82 DMIN 83 DOLLAR 84 DOLLARDE 85 DOLLARFR 86 DPRODUCT 87 DSTDEV 88 DSTDEVP 89 DSUM 90 DURATION 91 DVAR 92 DVARP 93 EDATE 94 EFFECT 95 EOMONTH 96 ERF 97 ERFC 98 ERROR.TYPE 99 EUROCONVERT 100 EVEN 101 EXACT 102 EXP 103 EXPONDIST 104 FACT 105 FACTDOUBLE 106 FALSE 107 FDIST 108 FIND, FINDB 109 FINV 110 FISHER 111 FISHERINV 112 FIXED 113 FLOOR 114 FORECAST 115 FREQUENCY 116 FTEST 117 FV 118 FVSCHEDULE 119 GAMMADIST 120 GAMMAINV 121 GAMMALN 122 GCD 123 GEOMEAN 124 GESTEP 125 GETPIVOTDATA 126 GROWTH 127 HARMEAN 128 HEX2BIN 129 HEX2DEC 130 HEX2OCT 131 HLOOKUP 132 HOUR 133 HYPERLINK 134 HYPGEOMDIST 135 IF 136 IMABS 137 IMAGINARY 138 IMARGUMENT 139 IMCONJUGATE 140 IMCOS 141 IMDIV 142 IMEXP 143 IMLN 144 IMLOG10 145 IMLOG2 146 IMPOWER 147 IMPRODUCT 148 IMREAL 149 IMSIN 150 IMSQRT 151 IMSUB 152 IMSUM 153 INDEX 154 INDIRECT 155 INFO 156 INT 157 INTERCEPT 158 INTRATE 159 IPMT 160 IRR 161 ISBLANK 162 ISERR 163 ISERROR 164 ISEVEN 165 ISLOGICAL 166 ISNA 167 ISNONTEXT 168 ISNUMBER 169 ISODD 170 ISPMT 171 ISREF 172 ISTEXT 173 JIS 174 KURT 175 LARGE 176 LCM 177 LEFT, LEFTB 178 LEN, LENB 179 LINEST 180 LN 181 LOG 182 LOG10 183 LOGEST 184 LOGINV 185 LOGNORMDIST 186 LOOKUP 187 LOWER 188 MATCH 189 MAX 190 MAXA 191 MDETERM 192 MDURATION 193 MEDIAN 194 MID, MIDB 195 MIN 196 MINA 197 MINUTE 198 MINVERSE 199 MIRR 200 MMULT 201 MOD 202 MODE 203 MONTH 204 MROUND 205 MULTINOMIAL 206 N 207 NA 208 NEGBINOMDIST 209 NETWORKDAYS 210 NOMINAL 211 NORMDIST 212 NORMINV 213 NORMSDIST 214 NORMSINV 215 NOT 216 NOW 217 NPER 218 NPV 219 OCT2BIN 220 OCT2DEC 221 OCT2HEX 222 ODD 223 ODDFPRICE 224 ODDFYIELD 225 ODDLPRICE 226 ODDLYIELD 227 OFFSET 228 OR 229 PEARSON 230 PERCENTILE 231 PERCENTRANK 232 PERMUT 233 PHONETIC 234 PI 235 PMT 236 POISSON 237 POWER 238 PPMT 239 PRICE 240 PRICEDISC 241 PRICEMAT 242 PROB 243 PRODUCT 244 PROPER 245 PV 246 QUARTILE 247 QUOTIENT 248 RADIANS 249 RAND 250 RANDBETWEEN 251 RANK 252 RATE 253 RECEIVED 254 REPLACE, REPLACEB 255 REPT 256 RIGHT, RIGHTB 257 ROMAN 258 ROUND 259 ROUNDDOWN 260 ROUNDUP 261 ROW 262 ROWS 263 RSQ 264 RTD 265 SEARCH, SEARCHB 266 SECOND 267 SERIESSUM 268 SIGN 269 SIN 270 SINH 271 SKEW 272 SLN 273 SLOPE 274 SMALL 275 SQL.REQUEST 276 SQRT 277 SQRTPI 278 STANDARDIZE 279 STDEV 280 STDEVA 281 STDEVP 282 STDEVPA 283 STEYX 284 SUBSTITUTE 285 SUBTOTAL 286 SUM 287 SUMIF 288 SUMPRODUCT 289 SUMSQ 290 SUMX2MY2 291 SUMX2PY2 292 SUMXMY2 293 SYD 294 T 295 TAN 296 TANH 297 TBILLEQ 298 TBILLPRICE 299 TBILLYIELD 300 TDIST 301 TEXT 302 TIME 303 TIMEVALUE 304 TINV 305 TODAY 306 TRANSPOSE 307 TREND 308 TRIM 309 TRIMMEAN 310 TRUE 311 TRUNC 312 TTEST 313 TYPE 314 UPPER 315 VALUE 316 VAR 317 VARA 318 VARP 319 VARPA 320 VDB 321 VLOOKUP 322 WEEKDAY 323 WEEKNUM 324 WEIBULL 325 WORKDAY 326 XIRR 327 XNPV 328 YEAR 329 YEARFRAC 330 YIELD 331 YIELDDISC 332 YIELDMAT 333 ZTEST
