Statistics is new to me. My dataset containd 7000 incidents that were processed within x number of days. I took a sample of 400 from the population:
The population and sample seems to have a right-skewed distribution.
What is my hypothesis?
My hypothesis is that tickets are processed within 14 days on average. I made the following hypothesis:
H0: <= 14
Ha: > 14
The problem is that my data is not normally distributed. My first opinion was to do the one tailed student test but because my data is right-skewed i think this isn’t a solution.
What do you think what the best way is to test my hypothese?
Code:
ID closedindays"
"1" 2
"2" 27
"3" 64
"4" 2
"5" 16
"6" 5
"7" 4
"8" 7
"9" 4
"10" 1
"11" 35
"12" 1
"13" 2
"14" 1
"15" 33
"16" 22
"17" 6
"18" 6
"19" 27
"20" 1
"21" 0
"22" 2
"23" 0
"24" 16
"25" 1
"26" 10
"27" 1
"28" 2
"29" 16
"30" 0
"31" 4
"32" 9
"33" 0
"34" 16
"35" 66
"36" 1
"37" 0
"38" 11
"39" 9
"40" 25
"41" 5
"42" 7
"43" 70
"44" 0
"45" 7
"46" 67
"47" 10
"48" 74
"49" 0
"50" 1
"51" 7
"52" 17
"53" 14
"54" 6
"55" 6
"56" 11
"57" 2
"58" 14
"59" 4
"60" 14
"61" 2
"62" 97
"63" 0
"64" 17
"65" 3
"66" 4
"67" 3
"68" 2
"69" 0
"70" 6
"71" 7
"72" 3
"73" 8
"74" 58
"75" 13
"76" 53
"77" 3
"78" 0
"79" 1
"80" 9
"81" 1
"82" 1
"83" 0
"84" 45
"85" 1
"86" 14
"87" 4
"88" 4
"89" 6
"90" 1
"91" 0
"92" 0
"93" 3
"94" 1
"95" 0
"96" 7
"97" 1
"98" 4
"99" 5
"100" 4
"101" 13
"102" 1
"103" 66
"104" 0
"105" 3
"106" 0
"107" 50
"108" 13
"109" 36
"110" 2
"111" 3
"112" 0
"113" 50
"114" 35
"115" 57
"116" 0
"117" 4
"118" 1
"119" 1
"120" 3
"121" 0
"122" 4
"123" 20
"124" 16
"125" 53
"126" 4
"127" 9
"128" 4
"129" 50
"130" 51
"131" 0
"132" 6
"133" 3
"134" 58
"135" 3
"136" 1
"137" 1
"138" 4
"139" 66
"140" 0
"141" 4
"142" 1
"143" 1
"144" 16
"145" 11
"146" 1
"147" 9
"148" 12
"149" 0
"150" 1
"151" 7
"152" 1
"153" 17
"154" 2
"155" 1
"156" 12
"157" 0
"158" 5
"159" 6
"160" 13
"161" 9
"162" 5
"163" 12
"164" 2
"165" 0
"166" 1
"167" 0
"168" 1
"169" 3
"170" 1
"171" 1
"172" 0
"173" 16
"174" 9
"175" 16
"176" 1
"177" 3
"178" 1
"179" 2
"180" 4
"181" 5
"182" 55
"183" 14
"184" 49
"185" 2
"186" 63
"187" 0
"188" 5
"189" 3
"190" 51
"191" 50
"192" 11
"193" 1
"194" 17
"195" 65
"196" 26
"197" 26
"198" 1
"199" 6
"200" 0
"201" 3
"202" 8
"203" 2
"204" 18
"205" 0
"206" 2
"207" 1
"208" 0
"209" 0
"210" 1
"211" 53
"212" 10
"213" 2
"214" 11
"215" 0
"216" 8
"217" 2
"218" 0
"219" 11
"220" 1
"221" 1
"222" 5
"223" 0
"224" 6
"225" 3
"226" 1
"227" 17
"228" 2
"229" 1
"230" 36
"231" 50
"232" 1
"233" 2
"234" 1
"235" 31
"236" 3
"237" 31
"238" 1
"239" 0
"240" 70
"241" 13
"242" 1
"243" 6
"244" 0
"245" 8
"246" 0
"247" 0
"248" 5
"249" 5
"250" 66
"251" 1
"252" 12
"253" 5
"254" 17
"255" 1
"256" 0
"257" 9
"258" 2
"259" 5
"260" 1
"261" 1
"262" 0
"263" 5
"264" 15
"265" 0
"266" 0
"267" 3
"268" 13
"269" 0
"270" 1
"271" 1
"272" 48
"273" 46
"274" 1
"275" 1
"276" 11
"277" 59
"278" 0
"279" 0
"280" 50
"281" 6
"282" 1
"283" 0
"284" 1
"285" 3
"286" 0
"287" 34
"288" 50
"289" 70
"290" 116
"291" 15
"292" 31
"293" 153
"294" 3
"295" 1
"296" 7
"297" 6
"298" 9
"299" 6
"300" 4
"301" 13
"302" 8
"303" 1
"304" 4
"305" 7
"306" 11
"307" 14
"308" 8
"309" 1
"310" 12
"311" 7
"312" 0
"313" 1
"314" 66
"315" 52
"316" 21
"317" 1
"318" 2
"319" 5
"320" 26
"321" 1
"322" 2
"323" 30
"324" 18
"325" 9
"326" 26
"327" 10
"328" 24
"329" 0
"330" 0
"331" 1
"332" 1
"333" 0
"334" 0
"335" 1
"336" 7
"337" 2
"338" 20
"339" 5
"340" 6
"341" 1
"342" 13
"343" 23
"344" 5
"345" 69
"346" 1
"347" 8
"348" 1
"349" 3
"350" 1
"351" 35
"352" 1
"353" 10
"354" 17
"355" 64
"356" 6
"357" 7
"358" 41
"359" 0
"360" 26
"361" 1
"362" 9
"363" 35
"364" 1
"365" 5
"366" 7
"367" 65
"368" 4
"369" 2
"370" 0
"371" 62
"372" 5
"373" 7
"374" 1
"375" 4
"376" 3
"377" 0
"378" 70
"379" 25
"380" 5
"381" 1
"382" 5
"383" 10
"384" 2
"385" 51
"386" 0
"387" 1
"388" 4
"389" 72
"390" 73
"391" 8
"392" 3
"393" 2
"394" 70
"395" 10
"396" 3
"397" 2
"398" 2
"399" 26
"400" 56What is my hypothesis?
My hypothesis is that tickets are processed within 14 days on average. I made the following hypothesis:
H0: <= 14
Ha: > 14
The problem is that my data is not normally distributed. My first opinion was to do the one tailed student test but because my data is right-skewed i think this isn’t a solution.
What do you think what the best way is to test my hypothese?