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Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.9 bpm: For random sample of 169 adult males, the mean pulse rate is 68_ bpm and the s...

Question

Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.9 bpm: For random sample of 169 adult males, the mean pulse rate is 68_ bpm and the standard deviation is 11. bpm: Complete parts (a] and (b below:Express the original claim in symbolic form.bpm (Type an integer or decimal: Do not round:)Identify the null and alternative hypotheses_Ho: bpm Hj: bpm (Type integers or decimals: Do not round:)

Claim: The mean pulse rate (in beats per minute) of adult males is equal to 68.9 bpm: For random sample of 169 adult males, the mean pulse rate is 68_ bpm and the standard deviation is 11. bpm: Complete parts (a] and (b below: Express the original claim in symbolic form. bpm (Type an integer or decimal: Do not round:) Identify the null and alternative hypotheses_ Ho: bpm Hj: bpm (Type integers or decimals: Do not round:)



Answers

Identifying $H_{0}$ and $H_{1}$ Do the following: a. Express the original claim in symbolic form. b. Identify the null and alternative hypotheses. Claim: The mean pulse rate (in beats per minute, or bpm) of adult males is equal to 69 bpm. For the random sample of 153 adult males in Data Set 1 "Body Data" in Appendix B, the mean pulse rate is 69.6 bpm and the standard deviation is 11.3 bpm.

In this case, the real name is that the mean pulse read in the adult males is 72 on the P value that we get 010095 0.95 This is my pea Veloute. My Alfa is 0.5 So since the a P values less than Alfa, I will reject the null hypothesis. Now, what was the null hypothesis? The claim is that the mean, mean pulse rate is 72. Okay, so this was the original claim, which means this will be my null hypothesis. Final hypothesis will be so remind. Null hypothesis will be that my mu is equal to 72. And my alternative hypothesis will be that my mu is not equal to 72. Can I write it like this? Yes, I think I can. And I can say that I have enough sufficient sufficient evidence to reject the claim that the mean pulse rate off the adult males is 72 beats per minute. Hence I reject my null hypothesis. The original flame can be rejected

Claim the standard deviation off pulse rates off adults is more than 11 bpm. Now, this is my claim, which means this is going to go into my alternative hypothesis. My alternative hypothesis is going to be that the standard deviation off pulse rates off arrangements is more than 11. That my sanity aviation is more than 11. And what is going to be my null hypothesis, Manal hypothesis will be there. No, this is equal to 11 right? This is my claim. And this is also my alternative hypothesis, and these are my null and alternative hypotheses.

So we're given an oddball male with 45 beats per minutes and we want to find out if this is unusual. So it's 45 beats per minute, unusual. Well, something is considered unusual if it's more than two. Standard deviations. Yeah, away from the main, which has, What does that mean? Well, the mean that they give us is 67.3 beats per minute. Yeah, Okay, And the standard deviation is 10.3. Mhm. Yeah, So to find out if it's unusual, 45, We're gonna have to go down two standard deviations, so we'll start at 67.3 average And then we'll subtract 10.3 are standard deviation and if it's unusual there has to be beyond two standard deviations, so we're gonna multiply two standard deviations times are 10.3 And this is going to get us 46.7 from her lower bounds of standard deviations. A fridge, a little lumber line here and said that are averages right here and then our first standard deviation was right there than our standard second standard deviation, I was going to be here, This is where 46.7 is. And 45 is farther than that. It's beyond that. 2nd standard deviation. So, what we can include is that it is unusual for a male to have 45 beats per minute. Yeah, yeah,

The original name in this case is that the standard deviation off pulse rates of adult males is more than 11 beats per minute. Okay, so this is the claim. So in this case, I can say in this case, I can say that my this is the claim, right? So this is my alternative hypothesis. My alternative hypothesis is that this standard deviation is more than 11. So this is greater than 11. And my null hypothesis will be that this is equal to 11 right now, at Alpha's equals 0.5 my P value is 0.3. And since my P value is greater than Alfa, this I get as 0.3. What is the 0.30453045? Now, since this is greater than my Alfa off zero point 05 I will say that I do not have enough statistical evidence to reject my little hypothesis. Right. So I do not have enough statistical evidence to claim that the standard deviation off pulse rates of what it means is more than 11. This would be my answer


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