Hypothesis Testing

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Hypothesis
In a study, you design a hypothesis, which is what you think the outcome of your study will be. When you create a hypothesis, you are creating a null hypothesis and an alternate hypothesis.
Null hypothesis: The independent variable has no effect on the dependent variable, meaning that nothing will change during the study. Alternate hypothesis: The independent variable has an effect on the dependent variable, meaning that you expect to see change during the study.
For example, you’re designing a study on the effects of a therapeutic intervention on participants experiencing anxiety, with the intervention as your independent variable and the level of anxiety as the dependent variable. Your null hypothesis would say that the intervention has no effect on the participant’s anxiety level. Your alternative hypothesis would say that the intervention has an effect on the anxiety level.
Effect Size and Power
Effect size deals with the strength of the relationship between your two variables and what the magnitude of that effect is on your dependent variable. Let’s return to the same example as above. Your participant experiences anxiety 10 out of 24 hours in a day. The participant went through the intervention, and the hours reduced from 10 to 1 hour per day. This would indicate a strong effect size.

Power relates to the degree of change in the dependent variable just like effect size. However, statistical power also measures your likeliness of rejecting the null hypothesis. If your statistical power is high, you are seeing change in the dependent variable. Therefore, it is very likely that you will reject the null hypothesis, which states that there would be no change. Since the participant’s level of anxiety reduced from 10 hours to 1 hour, you can determine that the statistical power is high.

Please complete the attached worksheet.(Contemporary Math) Final Exam online Mymathlab
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Test Math 1332-41910 Co-req Spring 2020 Final Exam 150min
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Directions

Last week, we read an article about daily routines and answered some small questions. This week, we will discuss what this article means as a group. Please read the article again if you need a reminder. When you are done, answer the questions on the discussion board.

The questions

In the discussion board, answer the following questions:
What is the main idea of the section called ‘Bedtime habits?’ Where did you find your answer? What is the main idea of the section called ‘Eating habits?’ Where did you find your answer? What is the main idea of the section called ‘Exercise habits?’ Where did you find your answer? What is one important thing that you learned that you want to do in your life? What is an important part of your daily routine that helps you with good bedtime habits, good eating habits, or good exercise habits?

The Importance of a Daily RoutineH a r p e r S p e r oMany people rejectroutines because they would rather be adventurous, go with the flow, and keep their schedules open. But there’s something to be said about keeping a routine: It can improve overall health, well–being, and productivity.In the book, The Miracle Morning author Hal Elrod explains ways to changethe lives of readers and wake up each day with more focus, energy, and motivation.Hesays, “How you wake up each day and your morning routine can really affectyour levels of success in every single area of your life.” Focusedand productive morningscarry over to successful days, and ultimately successful lives.There are many ways to get into a routine, but the number one rule is to make it work for you. Just because a routine works for your friend or family member doesn’t mean it’s the best for you to take. Here are some tips to keep a daily routine:Bedtime Habits:Go to bed and wake up each day around the same time. This is the first step to start a routine. By going to bed at the same time, you program your body to get into a ritualof sleeping a set number of hours. People have different sleep patternsthat allow them to functionthroughout a day. When you feel energetic,or active,studies suggest self–esteemrises. But feeling tired can have the opposite effect.If you have trouble sleeping, here is what you can do. In order to fall asleep at night, tryto turn off all electronic devices (computers, phones, tablets) at least 30 minutes beforegetting into bed. Allow your eyes to relax and catch a break from the lightof a lit screen. Read a book, write in a journal, or write out your to–do list for thenext day. Set an alarm if you cannot wake up automaticallyat the same time every morning. Think aboutadding a few drops of lavender essential oil to your pillow because it helps torelax and calm the mind.Some people like to listen to calmingnoises called white noises. White noises help withrelaxation and it can also help toblock out any outside interruptions. There are noise machines available online and in stores, or there are free appsthat people can download on their phonesthat play relaxing sounds including beach waves, rain, birds chirping, and more.When you wake up in the morning and want to feel energized and ready for the day, set an intention or goal for the day. Determine what it is you want to accomplishor feel throughout the day.

Eating Habits:Breakfast is the most important meal of the day. Ahealth coach named Tracey Lemlesays an eating routine shouldn’t be strict or like you’re being forced to do something. “Our bodies respond really well to repetitioneven when it comes to eating,” she says. Once you wake up, drink a glass of water and try to includeprotein into your breakfast. Protein helps us feel satisfied throughout the day. Consider oatmeal or quinoa with bananas, almonds, and a little honey for a healthy, easy, low–cost start to your day.Exercise Habits:Make it your goal to move in some way every day. Physical activity can reduce the risk of diseases, aidweight loss, and improve sleep habits and self–esteem. One in four Americans don’t get any exercise at all. But when people exercised for just 30 minutes a day, they felt they had an increase in energy.Design a program that works best for you. For some people that means taking a 60–minute fitness class four times a week. For others it’s a long run twice a week, and for others it’s a daily walk with friends. Whatever path you choose, just remember moving benefits your body.Take time for yourself and keep a routine in your sleep, eating, and exercise. These are three crucial rules for living a healthy and balanced lifestyle. Remember, this is your life and you have to do it the way that works best for you.About the author:Harper Sperois a business coach based in New York City who specializes in working with individuals who want to live, work, and earn on their own terms. She inspires and motivates new entrepreneurs and small business owners, helping them navigate the entrepreneurial leap and ensuring that they have the support, resources, and confidence to achieve their goals.Peer review essay: assignment help online
Can you help me understand this English question?

PEER REVIEW QUESTIONS（ Wirte in only on paragraph！！）
thesis CONTEXT: Is it clear that the writer understands the tweet? How could it be more clear? what more info do you need to understand what’s at stake? Identify topic sentences: discuss the development and the unity of paragraph AUDIENCE: Who are the stakeholders in this issue? Discuss the conclusion What does the writer do well? What needs help/improvement? Are there quotes to support the ideas? How are they incorporated? Did they introduce the quote, insert, and then explain?Complete Quiz #7
Help me study for my Statistics class. I’m stuck and don’t understand.

1. Explain in your own words why, for a continuous random variable, P(X = k) = 0 for any number k.

2. Suppose that a certain battery is advertised to last for 5 years. Suppose further that the actual life time of the battery is approximately normally distributed with a mean of 5.4 years and a standard deviation of 0.3 years. Answer each of the following:

a) Explain how the standard normal curve, Z, relates to computing the probability of a randomly selected battery lasting less than the advertised amount of time.

b) Compute and interpret the probability of a randomly selected battery lasting less than the advertised amount of time.

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