Question 1 Stdev VAR Period 14% 0.0196 12 a) Check whether it can be asserted with 98% confidence that the underlying yearly real variance of the portfol Sigma^2= 440 Ho: sigma^2 = 440 H1: sigma^2 not = 440 Statistic 4.9 With 98% confidence Lower limit 3.05348411 Upper limit 24.7249703 With 98% confidence we cannot reject Ho since the statistic is inside the acceptance
Premium Normal distribution Variance Statistics
solutes moving with or against their concentration gradient in facilitated diffusion? 2. What happened to the rate of facilitated diffusion when the number of carrier proteins was increased? 3. In the simulation you added Na+Cl- to test its effect on glucose diffusion. Explain why there was no effect. Activity 3: 1. Which membrane resulted in the greatest pressure with Na+Cl- as the solute? Why? 2. Explain what happens to the osmotic pressure with increasing solute concentration. 3. If the solutes
Premium Diffusion Osmosis Molecular diffusion
My report is on what it takes to become physically fit. "Physical fitness is the ability of the human body to function with vigor and alertness‚ without undue fatigue‚ and with ample energy to engage in leisure activities‚ and to meet physical stresses". Muscular strength and endurance‚ cardiorespiratory integrity‚ and general alertness are the overt signs of physical fitness. Physical fitness is usually measured in relation to functional expectations-that is‚ typically‚ by periodic tests measuring
Premium Obesity Exercise Human body
Exercise 1 Cell Transport Mechanisms and Permeability Name ____________________________________________________________ Lab Time/Date ______________________________ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. * The size of the pores of the membrane * The size of the molecule diffusing through the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results
Premium Diffusion Osmosis Molecular diffusion
both the mental and physical health aspects. Positive exercise habits formed in childhood tend to carry over into adulthood‚ thus helping reduce death and illness in the future. There are many other positive benefits that come through the form of exercise. Just as well‚ there are negative effects that can results from lack of exercise. Developing and instilling the importance of exercise through education is valuable to the youth of exercise. When determining physical activity‚ it is important
Premium Obesity Weight loss Exercise
Exercise 9 1. A farmer wanted to find the relationship between the amount of fertilizer used and the yield of corn. He selected seven acres of his land on which he used different amounts of fertilizer to grow corn. The following table gives the amount of fertilizer (in pounds) used and the yield of corn (in bushels)for each of the seven acres. Fertilizer Used (x) 120 80 100 70 88 75 110 Yield of Corn(y) 138 112 129 96 119 104 134 a. Find the least squares regression line. a. Calculate r and r2
Premium Regression analysis Linear regression Statistics
Importance of Exercise Most of us know by now that we should be exercising on a regular basis. But do you really know why exercise is so important? Not only does working out help you shed a few pounds‚ but there are also many other compelling reasons to include some regular activity in your routine. To begin with‚ Exercise has many benefits that will help people live longer‚ healthier‚ and happier lives. Not only is exercise healthful‚ it also has an effect on our overall appearance and body
Free Physical exercise Exercise Muscle
The Benefits of Exercise If you want to feel better‚ live longer and have more energy then you should consider the health benefits of exercise. The health benefits of exercise do not discriminate against age‚ sex‚ race or religion. They are there for the taking if a person is willing to put forth the effort. Exercise can minimize or in some cases even help in eliminating certain health issues or risks such as high blood pressure‚ obesity‚ diabetes‚ poor circulation‚ high cholesterol‚ fatigue‚ decreased
Premium Obesity
Exercises Exercise 1: Use the idea chain provided for the preparation phase of your speech and generate ideas for the following theme: the importance of going to college. Exercise 2: Write an outlined speech‚ about the dangers of late abortions (having an abortion after 3 months of pregnancy). Follow all the steps given for the preparation process of speaking in public. Exercise 3: Here’s the subject of a speech: Save the white whale of the gulf of guinea. Imagine you had to prepare handouts for
Premium Writing Communication Learning
obese and United States has the highest rate of obesity. Exercise not only reduces your risk for health problems and several diseases‚ but it also has an effect on overall appearance. It’s proven that exercising can improve self-esteem and confidence. Excerising has numerous benefits and it can even be fun. It’s important you exercise so that you can live a healthier‚ longer‚ and happier live. The number one reason why people should exercise is because it will keep you healthy. Americans are eating
Free Obesity Muscle Heart