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Right? And this is going to become 0.9302 0.9302 So what is Q Cap que cap will be one minus 0.930 to So just give me a moment. Okay, so P cap in that sort method is going to be 8 79 by 9. So, yes, the technique does seem to be effective. Does it? Does it appear that technique is effective in increasing the likelihood we can say Definitely yes, generally does 50% but now it is 93%. There's a 95% chance, so 93% chance of the probability 0.93 that the baby being born will be a girl. And what does this value turn out to be? This turns out to be 0.93 This is 0.9. This is the number of girls that were born divided by the total number off birds. Based on these results, what is the probability off a girl being born to a couple using Microsoft's exhort method? So what is this total number of favorable outcomes upon total outcomes? So 8 79 9 45 this is going to be 879.
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At one point, before clinical trials of the exogenous election technique was discontinued, 945 birds consisted off a different surname, Baby Goes and Successes, Baby Boys. Microsoft's exhort gender selection technique who was designed to increase the likelihood that the baby will be a girl. Let us try to look at what this question is saying. So the matter is very effective because it performs above average. Does the use sort method up here to be effective? Mhm Yeah. So does the beat back? The c pad is based on the resource. So with this Okay, what? We have zero pawn 76 34. Yeah, the estimate is within this interval.
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That means we can write the interval us 0.8: 1 30 -0.0579. So unless we can find the error just equal to 2.58 square bridge of zero on 8213. We already have this us zero point eight 213. Now the end the number of the sample size. Okay then we observe considered a took out there. So we have 995 year and that is yeah 2.5 eight. So here we have does E us Z which is you're looking at 99% confidence interval. Two times The proportion times 1 -1 the proportion All over the numbers that we are looking at. Now uh error is called to the critical value for our phone. Okay and that's the best estimate for the first back the second by looking at uh The 99 confidence interval of disproportion we would need yeah. Okey nut a total number and oh we are looking at the proportion that is actually voice so that is the you bend the voice. Welcome to this lesson in this lesson we have three questions that we are solving the first one is the best point estimate for the population proportion of voice using the wise sort committed.