According to 2011 research by hamlin and wynn young children...

According to 2011 research by Hamlin and Wynn, young children (5 months olds) tend to prefer _____, which indicates these young infants rejects _____ behaviors. Option A neither, since these young infants can't distinguish 2 puppets reliably; social Option B giver puppet; anti-social Option C giver and taker puppets equally; intentious Option D taker puppet; anti-social

Transcript

00:02 Hi, in the question, it is given that the baby within the director failed to make the decline.

00:09 So, we have the population proportion is coming out to be, in this case, held with 0 .5.

00:19 So you come to the proportion later on in this problem.

00:23 First, a part is that why is it important to randomly expose baby to the helper or hindered trooper? to randomly expose.

00:30 So that to avoid bias.

00:32 Randomly we are exposing to avoid bias.

00:37 Right, that's the reason.

00:38 So what's the bias basically? bias is we have whenever there's a significant difference between two parameters of population and statistics to estimate dog parameters.

00:48 So if you want to reduce that difference, there should not be different than the population parameters and we have statistics which you use in sample.

00:55 So therefore to reduce the to avoid the bias using randomness in the order.

01:01 For the b part, what is the appropriate null and alternative opposites? either it will make the climb or fail to make the climb.

01:07 So we can go for the b part, nali produces, given as we have p equals 0 .5.

01:16 It makes the client or fail to make the client.

01:19 Right.

01:20 And then alternative hypothesis is showing that if the research is attempting to show that babies perhaps are helpers over hindered, now what are the helper? helpers help to make the client and hinders hinderers hinder to make the client.

01:33 So we'll increase the probability that it will make the client.

01:37 By preferring helpers, we're increasing probability that it will make the client.

01:42 So we will have the alternative hypothesis, estimate to be p greater than 0 .5.

01:49 We use the vulnerable probability formula to determine the p value for this test.

01:57 Use the banana probability formula now.

01:58 Test the hypothesis, those three parts.

02:01 So 14 out of 16 says that use the helpers to make the client.

02:07 In 14 out of 16 cases, 40 out of 16 cases, the way we choose the helper to be declined, right? so now it is saying that p is greater than 0 .5...

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