Lose weight about a year ago i bought your weight

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Finite Mathematics and Applied Calculus
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Chapter 8 / Exercise 23
Finite Mathematics and Applied Calculus
Costenoble/Waner
Expert Verified
lose weight. “About a year ago I bought your Weight Loss Hypnosis CD . I listened to it 3 to 4 times a week (never staying awake through the whole thing) and lost 35 pounds. I never attributed my weight loss to your CD; I just thought I was doing better eating the right things and exercising. In July (don't ask me why) I stopped listening to your CD. I did all right for a while, but by October my old habits were back and by December I had gained 20 pounds. A few weeks ago while I was beating myself up wondering where I went wrong I remembered my CD. I started listening to it again about 2 weeks ago and my eating and exercising habits changed immediately. I'm back on track!” ~ Barbara 139.The following testimonial was once posted to the website for Mother Nature Diapers. The testimonial claims that the diapers are the best daytime diaper around. Identify any sampling problems and statistical logic problems with drawing the conclusion that Mother Nature Diapers are the best daytime diaper. “After trying unsuccessfully to use cloth diapers, I gave Mother Nature's a try. Unlike most 'natural' diapers, these are thin instead of chunky and baby can move around more easily. They truly are the best daytime diaper around.” ~M.G., Greenville, CA 140.In the first decade of the 2000s, several self-help gurus made claims about the power of positive thinking. In fact, they might argue that if you think you are going to do really well on this test, then that positive energy that you put out will result in good things coming to you; believe it and it will come true. (a) Describe how confirmation bias might be at work here. (b) Relate this to personal, or subjective, probability. (c) Discuss people's shortfalls in judging probability and randomness, and describe one way statisticians assure true randomness in their research. Page 23
We have textbook solutions for you!
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Finite Mathematics and Applied Calculus
The document you are viewing contains questions related to this textbook.
Chapter 8 / Exercise 23
Finite Mathematics and Applied Calculus
Costenoble/Waner
Expert Verified
141.Researchers were interested in whether the use of biases in reasoning depended upon a person's intelligence. The researchers divided their sample of college freshman into two groups: those of higher intelligence and those of lower intelligence. They then gave both groups of students a test of reasoning. (a) What is the likely null hypothesis for this experiment? (b) What is the likely research hypothesis for this experiment? 142.Researchers who were interested in whether touch therapy improves the weight gain of preterm infants compared the weight gain over a 3-week period of infants receiving touch therapy, to the weight gain of infants not receiving touch therapy. (a) What is the likely null hypothesis for this experiment? (b) What is the likely research hypothesis for this experiment? 143.A group of 30 students enrolled in a research methods class is studying the effect clear plastic report covers have on the grade they receive on a paper. They suspect that papers with a nifty plastic cover will look more professional, which will earn them a higher grade regardless of paper content. (a) What is the likely null hypothesis for any experiment the students would conduct? (b) What is the likely research hypothesis for any experiment the students would conduct?

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