Statistical Methods | 2nd Live Doubt Clearing Session & Final Exam Preparation Tips | 2080 |MBS 1st

foreign [Music] exam very near to I mean song is foreign class a is renowned faculties Ma foreign the last last week yes foreign enjoy a lot foreign foreign our foreign programs foreign foreign foreign foreign foreign equal foreign this foreign foreign foreign foreign foreign your back contains 200 items of which 20 are defective um 200 items of which 20 hours defective is 200 items so items are 20 defective twenty defective 20 defectives right 20 defectives non-defective one one itk water this is non-detectable of seven items are selected items what is the probability obtained in non-defective so defective five defective five non-defective less than two defective less than two different obviously because two or more cards are drawn at the same time we have to the combination foreign total number of selecting seven items a top 200 items foreign foreign foreign selecting non-defective selecting of non-defective items non-defective items items the 180 none defective items you know you know a simpler therefore non-defective 180 divided 180 c 7 by 20 C7 your 200 items selection number foreign foreign none defectives that is defectives five non-defective II foreign non-defectives M by n one 20 C2 into 180 divided C5 divided by 200 C 7. password foreign foreign foreign foreign of getting less than two defectives foreign is applied hey greater than equal to any yeah foreign an accused away wrong foreign likely assumptions two or more things selected combinations Torah subscribe one of them is foreign okay yeah foreign that is independent cases foreign and then given that is rate what is the probability that it comes from the first bar it comes from second bag to put in okay conditional property revised form of conditional probability conditional probability is [Music] foreign foreign date with the standard deviation of thirty five hundred up to the 95 and 99 percent confidence limits for the population mean assuming that the parent population from which sample are drawn in normally distributed normally distributed greater than 30 so great again confidence limits foreign foreign foreign limits is foreign foreign uh 35 divided by root 550. 23 point four five two digits is 35 divided by two three point four five to two degrees one point four nine foreign 95 percent confidence limits are you confidence limits okay confidence 0.95 yes foreign here 1 minus Alpha One equals 0.95 so okay Alpha this is 0.05 so therefore z alpha by 2 1 equals 357 3.58 one person two percent three percent four percent page number 358. 1.96 foreign confidence limits for estimating population mean population mean mu R given by R given by the formula X bar plus minus z alpha by 2 into standard error meaning 95 percent 95 percent confidence limits 95 percent confidence 1500 plus minus a 1.96 into standard erode 1.49 foreign one point okay 1.96 into 1.49 .2.9204 obviously lower confidence limit Ed version 1500 minus 2.9204 and upper confidence limit foreign foreign 200 21 question number universally if the population proportion success is 0.65 yes sampling error is 0.093 and level significance is five percent Comfort the sample size question notation your 221 number question mark your notations we have yeah capital P population proportion success your success 0.6 0.65 capital Q one Echo 1 minus P Gurney one minus 0.65 0.35 0.093 level significance foreign foreign foreign foreign down a variable which is used for estimation which is used for production is called independent variable I is called independent variable which is to be predicted by non-values called dependent variables that we are trying to estimate we are trying to preduct the unpaid tax based on computer hours based on a labor hours um irrigation line is foreign foreign a random sample of size 20 from normal population gives the sample mean of 42 and Sample standard yes six this happens is that the population mean is 44. um with the original notations from a normal population gives the sample mean 20 whatever the sample means 42 42 there sir yes foreign that is population mean is foreign population mean is not not equal to because statistics statistics test statistics foreign Square Monaco 20 minus one obviously also minus 2 divided by 36 divided modulus foreign 895 one point eight nine five one point three three seven seven eight yeah two divide by 1.377 2 divided by 1.3 2 divided by 1 Point 3 7 7 um minus one point one point four five you reboot I have you report is level of significance a level of significance step foreign critical value Alpha by 2 a degree of Freedom n minus one when you go t Alpha by 2 N minus 1 19 for two till test two till test percentage 2.093 tomorrow foreign you know calculated T is less than tabulated T Alpha by 2 Sun y it is not significant and yet accept it is which means that population mean is 44 okay our selves um foreign hey yada question number seven question number seven your question number seven ma hey everybody your questions right yeah CP X is equal to 3 any p x is equal to to you relationship when n is equal to five n is equal to five so when you find the value of parameter P questions foreign probability of getting our successes given by p x is equal to R um NCR Pico power r q power n minus r where R goes from 0 1 to kasamadani and Sama a question is where foreign honey yes ten foreign foreign from equation one two three from the questions one two and cure three we get six into a surima question six p x is equal to three p x is equal to 3 minus ten yeah 10 p q or 7 p is equal to one eye it here foreign to Malay foreign I think you can get more than what you expect body parts online offline online foreign ramro go Vista block our examples goodbye see you all correspondence [Music]