Formulas and Functions

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Table of Contents

Welcome
Intro to formulas and functions
- DATE
- DATEDIF
- DATEVALUE
- DAY
- DAYNAME
- DAYS360
- EDATE
- EOMONTH
- HOUR
- MINUTE
- MONTH
- MONTHNAME
- NETWORKDAYS
- NOW
- SECOND
- TIME
- TIMEVALUE
- TODAY
- WEEKDAY
- WEEKNUM
- WORKDAY
- YEAR
- YEARFRAC
- BASETONUM
- BESSELJ
- BESSELY
- BIN2DEC
- BIN2HEX
- BIN2OCT
- CONVERT
- DEC2BIN
- DEC2HEX
- DEC2OCT
- DELTA
- ERF
- ERFC
- GESTEP
- HEX2BIN
- HEX2DEC
- HEX2OCT
- NUMTOBASE
- OCT2BIN
- OCT2DEC
- OCT2HEX
- ACCRINT
- ACCRINTM
- BONDDURATION
- BONDMDURATION
- COUPDAYBS
- COUPDAYS
- COUPDAYSNC
- COUPNUM
- CUMIPMT
- CUMPRINC
- CURRENCY
- CURRENCYCODE
- CURRENCYCONVERT
- CURRENCYH
- DB
- DDB
- DISC
- EFFECT
- FV
- INTRATE
- IPMT
- IRR
- ISPMT
- MIRR
- NOMINAL
- NPER
- NPV
- PMT
- PPMT
- PRICE
- PRICEDISC
- PRICEMAT
- PV
- RATE
- RECEIVED
- SLN
- STOCK
- STOCKH
- SYD
- VDB
- YIELD
- YIELDDISC
- YIELDMAT
- AND
- FALSE
- IF
- IFERROR
- ISBLANK
- ISERROR
- ISEVEN
- ISODD
- NOT
- OR
- TRUE
- ABS
- CEILING
- COMBIN
- EVEN
- EXP
- FACT
- FACTDOUBLE
- FLOOR
- GCD
- INT
- LCM
- LN
- LOG
- LOG10
- MOD
- MROUND
- MULTINOMIAL
- ODD
- PI
- POLYNOMIAL
- POWER
- PRODUCT
- QUOTIENT
- RAND
- RANDBETWEEN
- ROMAN
- ROUND
- ROUNDDOWN
- ROUNDUP
- SERIESSUM
- SIGN
- SQRT
- SQRTPI
- SUM
- SUMIF
- SUMIFS
- SUMPRODUCT
- SUMSQ
- SUMX2MY2
- SUMX2PY2
- SUMXMY2
- TRUNC
- ADDRESS
- AREAS
- CHOOSE
- COLUMN
- COLUMNS
- HLOOKUP
- HYPERLINK
- INDEX
- INDIRECT
- INTERSECT.RANGES
- LOOKUP
- MATCH
- OFFSET
- ROW
- ROWS
- TRANSPOSE
- UNION.RANGES
- VLOOKUP
- AVEDEV
- AVERAGE
- AVERAGEA
- AVERAGEIF
- AVERAGEIFS
- BETADIST
- BETAINV
- BINOMDIST
- CHIDIST
- CHIINV
- CHITEST
- CONFIDENCE
- CORREL
- COUNT
- COUNTA
- COUNTBLANK
- COUNTIF
- COUNTIFS
- COVAR
- CRITBINOM
- DEVSQ
- EXPONDIST
- FDIST
- FINV
- FORECAST
- FREQUENCY
- GAMMADIST
- GAMMAINV
- GAMMALN
- GEOMEAN
- HARMEAN
- INTERCEPT
- LARGE
- LINEST
- LOGINV
- LOGNORMDIST
- MAX
- MAXA
- MEDIAN
- MIN
- MINA
- MODE
- NEGBINOMDIST
- NORMDIST
- NORMINV
- NORMSDIST
- NORMSINV
- PERCENTILE
- PERCENTRANK
- PERMUT
- POISSON
- PROB
- QUARTILE
- RANK
- SLOPE
- SMALL
- STANDARDIZE
- STDEV
- STDEVA
- STDEVP
- STDEVPA
- TDIST
- TINV
- TTEST
- VAR
- VARA
- VARP
- VARPA
- WEIBULL
- ZTEST
- CHAR
- CLEAN
- CODE
- CONCATENATE
- DOLLAR
- EXACT
- FIND
- FIXED
- LEFT
- LEN
- LOWER
- MID
- PLAINTEXT
- PROPER
- REPLACE
- REPT
- RIGHT
- SEARCH
- SUBSTITUTE
- T
- TRIM
- UPPER
- VALUE
- ACOS
- ACOSH
- ASIN
- ASINH
- ATAN
- ATAN2
- ATANH
- COS
- COSH
- DEGREES
- RADIANS
- SIN
- SINH
- TAN
- TANH

CONFIDENCE

The CONFIDENCE function returns a value for creating a statistical confidence interval for a sample from a population with a known standard deviation. All arguments are number values.

CONFIDENCE(alpha, stdev, sample-size)

alpha: The probability that the true population value lies outside the interval. alpha must be greater than 0 and less than 1. Subtracting the confidence interval from 1 yields the alpha.

stdev: The standard deviation of the population. stdev must be greater than 0.

sample-size: The size of the sample. sample-size must be greater than 0.

Notes

The confidence estimate assumes that values in the sample are normally distributed.

Examples

=CONFIDENCE(0.05, 1, 10) returns 0.619795032304561. If the mean of the sample values is 100, then with 95% confidence, the population mean falls in the range 99.38–100.62.

=CONFIDENCE(0.1, 1, 10) returns 0.520148387875558. If the mean of the sample values is 100, then with 90% confidence, the population mean falls in the range 99.48-100.52.

=CONFIDENCE(0.05, 1, 20) returns 0.438261270288291.

=CONFIDENCE(0.05, 1, 30) returns 0.357838828743431.

=CONFIDENCE(0.05 ,1, 40) returns 0.309897516152281.

See alsoSTDEV

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