Master Data Analysis on Excel in Just 10 Minutes

in this video you're going to learn all the  fundamentals of data analysis and we'll break   this down into four main areas first we're  going to be looking at transforming the data   so cleaning it up secondly we're going to be  looking at creating descriptive statistics to   understanding better third we're going to be  looking at data analysis and finally we'll get   into creating a report to visualize our findings  so let's get into it and thank you to Coursera   for sponsoring this video more on them later the  first step here is to transform the data and for   this here's the Excel file that we'll be working  with which you can download for free in the video   description so as you can see this is going to  be for a fast food chain you can see the types   of products here and the first step is simply  to clean this up but for that we're going to   go to control T So to change this into a table  so change the data set into a table then we'll   head on OK from here for the cleanup part you can  see that under the manager column we seem to have   some very odd spacing here so let's go ahead and  clean that up here we're going to go to equals   trim hit the top key and this formula is going  to remove these old spaces I'm going to hit enter   there you can see that's going to Auto populate  for all of these we'll change this name to manager and then for all of these that are  currently linked to this column over   here we're going to paste them as values  so we're going to go Ctrl shift down   Ctrl C and then we're gonna paste this as a value  so alt h v v is a shortcut for that and now that   means that we can go ahead and remove this column  by hitting Ctrl minus there you go then under   quantity you might notice that we've got these  decimals which don't make too much sense you can't   really have half a burger and so for this we're  basically gonna have to round up to a whole number   for that we're going to use the Roundup formula so  equals round up hit the top key there the number   is this one comma and the number of digits for  us is going to be zero because we want the full   number close those brackets and hit enter so this  is going to be our quantity now hit enter there   and we basically wanna Ctrl shift down Ctrl C  and then paste as values so alt h v v v again   there you go so now we can remove this column  here so we're going to select it and control minus   then you'll notice that under City here we have  the city names but we don't necessarily have   the countries that would be a nice thing to add so  for this we can actually head over to the data tab   and go under data types you'll find  geography here so just click on that   once you start to see that icon it means that  it's loaded up what you want to do here is   hit over to this icon to the side under add  column and we basically want to add a country   or a region associated with that City and you  can see that we have the corresponding country   for each City if you want to move this city  column next to the country you can actually   go ahead and select it up top and we start to  see these arrows when you hover over it just   press the shift key and then just drag it across  like so that should allow you to move everything   one final thing we haven't done here is test  if there's any duplicates so for this we can   simply go under data again and we're just going to  remove duplicates by going to this icon over here   so we'll click on that and it's going to be  for that whole table and we'll simply hit on OK   and you can see here that we get a notification  saying that five duplicate values were found and   removed so we'll hit on OK there and speaking  of data analysis if this is something that   you want to learn more about you can check out  Google's data analytics professional certificate   it's designed to teach you job ready skills  for any data analytics role so you can learn   all the skills required in less than six months  the program currently has well over 1 million   students in a 4.8 star rating now if you're  wondering if you need any prior experience no   there's no prior experience required and it's  all fully self-paced in the program you learn   key analytical skills including data cleaning  analysis and visualization using some of the   most common industry tools such as spreadsheets  SQL or R programming upon completion you'll   receive a Google professional certification which  you'll be able to share on your CV and Linkedin   so if you're interested sign up for a seven day  free trial Now using the link in the description   below alright back to the video great now  that we've done step one and step two it's   all about the descriptive statistics so really  seeing things like what's the average price what   about the minimum the maximum and so on so for  this let's hop over to the side and you could   try to find for the price and for the quantity say  the average going one by one so type the average   formula then doing the same thing with the minimum  the maximum so on but there is a much faster way   that's actually using a tool called Data analysis  for that we're gonna have to activate it it should   be over here to the side under the data ribbon  if you don't have it like me we can go ahead   and activate it so we'll head over to file  go over to the bottom where it says options   from here we're gonna go into add-ins and we want  to click on the analysis toolpack here and hit on   go from here we want to select analysis toolpack  like I said and we'll hit OK now you can see that   we have this data analysis option under the data  ribbon so that's the one that we want to select from here we want the descriptive  statistics and we'll hit on OK there   and the input range is going to be all of  our prices so we'll go Ctrl shift down there   and then we want it to be a summary statistics and  where do we want this let's say we want an output   range which is going to be up over here so right  next to the table let's say we put it here to the   side there we're just going to hit on OK and now  you can see that for the price which is what we've   selected we've gotten everything from the mean  the median mode minimum maximum sum and a bunch   of other useful information let me repeat that  same process for the quantity awesome now we've   got the breakdown by price and by quantity as well  but one thing that this doesn't quite account for   is the fact that there could be outliers in our  price so for that we can go ahead down over here   we're gonna basically create a new chart which  is going to be a box and whisker so let's first   select all of the prices so Ctrl shift down  and down over here you're gonna find this icon   click on that and we want a box and whisker  basically this one over here and don't worry   if you can't interpret it we'll look at it just  in a second let me move that all the way up   so once we have it in here this is basically  telling us a few different things so first   these top and bottom lines are telling us  the maximums so the Max and the Min if you   will and then in here this box represents the  first and the third quartile and then you can   see that we've got that X which is the average  then we've got a line which is going to be the   median and finally we've got these dots over here  which represent all of our outliers in our price   now if we want to dig a bit further into this  it would be nice to see the x-axis maybe we can   put something like the manager's name to see where  exactly this is coming from maybe it's one manager   that might be reporting the data wrong so we'll  go to right click for that go under select data   edit the horizontal category access label  here and what we're going to do is put the   managers so we're going to select all  of these Ctrl shift down and hit on OK   and hit on OK again now if we go all the way back  up you can see what that breakdown looks like   by manager and it seems to be that all of these  outliers are accumulated with Joel maybe we should   have a word with him now moving on to step 3 which  is data analysis so over here you can see that   we've got three different questions that we want  to solve which is what is our best selling product   what is our total revenue and that's what's our  Revenue breakdown by payment method so if we go   back to the table here you notice that we don't  actually have a column for Revenue so that's one   that we're going to have to calculate simply  by multiplying the price and the quantity so   we'll do that over here let me add an extra column  there and let's call this something like Revenue and the formula for it is going to be equals the  quantity multiplied by the price and we'll just   hit enter there that should be calculated for us  and then we'll go up over here again and for all   of this analysis we can actually do most of it  with a pivot table so we'll head over to insert   pivot table the table or range we're interested in  is all of this range so once we select one of the   cells we can just go to control a that's going to  select all of them and we want this in a location   in an existing worksheet which we already selected  so we'll hit OK great from here we can start doing   all the breakdown so what's our best selling  product so let's do this by quantity we're going   to select the products as the rows just hover that  over and then we're gonna check the quantity over   here as the values great now we have all of that  breakdown if we want to sort it from highest to   lowest we can go to right click and go to sort  and we'll sort largest to smallest and now you   can see that beverages is our largest at 35 000.  then secondly we've got what is our total revenue   for this one we're simply going to have to select  the revenue so first we'll remove these let's take   this out and we'll take this out as well and  we just have to select the revenue and put it   under values that should give us the sum of total  revenue which seems to be 812 000. and finally our   Revenue breakdown by payment method so for that  we're gonna get all of the payment methods and   put those under the rosie like so but to see the  breakdown better it probably makes more sense as   a percentage so what we can actually do is go to  right click and from here go to summarize show   values ask sorry and we're going to show them as a  percentage of the grand total now you can see that   full breakdown and it seems like credit cards are  the most dominant here now that you've seen how to   do some of the data analysis let me show you what  a final report might look like this one here is   fairly simplified so you can see that we've got  this drop down which is using data validation   to select the manager and everything dynamically  changes so if I select dwell I'm able to see which   country and city is from using the X lookup and  then just below that using the sum ifs I'm able   to derive his particular revenue for fries and  the other products as well as his total revenue   and these data bars over here are done using  the conditional formatting if you're unsure   how to do this type of formulas you can check  out this video over here or this link over here   to take our Excel codes hit the like and that  subscribe and I'll catch you in the next one

Channel: Kenji Explains

Views: 1,671,571

Keywords: data analysis in excel, excel data analysis, analysing data, data analysis, master data analysis, data analysis in 10 minutes, descriptive statistics excel, box and whisker excel, pivot tables excel, data analysis report excel, data transformation, removing duplicates, data cleaning excel, trim formula, xlookup, sumifs, beginner to pro in data analysis, learn data analysis on excel in 10 minutes, learn data analysis, data analysis fundamentals, data analytics on excel

Id: _g5roKHj95o

Length: 11min 31sec (691 seconds)

Published: Sun Feb 26 2023