These are the statistics that we have. We have a sample size of 49. Our sample standard deviation is 21 our sample means 0.4. Now, what exactly is the claim? If I look at the question? Okay. We are testing the claim that with the garlic treatment, the mean change in LDL cholesterol is greater than zero, which means are null hyper. Yeah, are null hypothesis and our alternative hypothesis. Okay, so we are checking for me to be greater than zero. And what does this mean exactly? This is the difference in before and after. So this will become our alternative hypothesis. So what will be a null hypothesis? It will be mu is less than or equal to zero. Okay, now we're going to use a T test since we do not know the population standard deviation. And what is the formula to calculate the T statistic? It s t is equal to expert. This is the value that we already have minus immune. That is the hypothesized me which happens to be zero in this case, upon s sample standard deviation, we already have divided by root end the verbal root end on. What is n n is 49. So if I put in all the values over here mighty value turns out Toby 0.133 Mighty statistic turns out to be This turns out to be 0.133 Okay, Our Alfa is 0.5 We are going to perform a test and we need to know Alfa. And this is going to be our Alfa for this question. And what is the degree off freedom? Degree of freedom is given by n minus one. Degree of freedom is given by end minus one. What is N sample size, which is 49. So what is it? Minus 1 49 minus one, which is 48. This becomes my degrees of freedom. Now, in order to calculate the p values, we need only two things. One is the T statistic, and one is the degrees off freedom. Okay, so what is a P value that I'm getting the p value? If I use a online tool, then I get my P value somewhere around 0.4472 So my p value my P value is 0.4472 And this is much greater than Alfa. Right? So what I can say is, since my P value is greater than Alfa, I fail to reject each. Not I fail to read, Shake age not. Okay. Now let us look at the question. What was it? Not h not waas. That are mean. That is the difference of the mean Sorry. That is the mean difference is less than or equal to zero. So we do not have enough statistical evidence to say that arm you is greater than zero R In medical terms, we say that we do not have sufficient evidence to suggest that the treatment with raw garlic actually reduces the cholesterol levels. Okay, and these would be my answers.