HYPOTHESIS TESTING AND TYPE ERRORS Assignment Example | Topics and Well Written Essays - 1000 words

HYPOTHESIS TESTING AND TYPE ERRORS - Assignment Example The Type II error is not rejecting the null hypothesis that the mean weight of a package is 20 ounces when it is in fact false. In other words, we decide that the mean weight of a package is 20 ounces, but in reality, it is different from 20 ounces. When the alternate hypothesis involve less than (â€Å"†) symbols, then the test is a one-tailed test. When the alternate hypothesis involve not equal to (â€Å"≠ Ã¢â‚¬ ) symbol, then the test is a two-tailed test. For example for the problem one scenario, the hypothesis for a one-tailed and a two-tailed test will be P-value: The P-value is referred to as observed significance level or probability value of a hypothesis test. The P-value of a hypothesis test is equal to the smallest significance level at which the null hypothesis can be rejected. In other words, the P-value is referred as the smallest significance level for which the observed sample data results in rejection of H0. Statistically significant: If the P-value of the hypothesis test is less than the significance level (0.05 or 0.01), then the null hypothesis is rejected and the results of the test are said as statistically significant results. 4. A homeowner is getting carpet installed. The installer is charging her for 250 square feet. She thinks this is more than the actual space being carpeted. She asks a second installer to measure the space to confirm her doubt. Write the null hypothesis Ho  and the alternative hypothesis Ha. 5. Drug A is the usual treatment for depression in graduate students. Pfizer has a new drug, Drug B, that it thinks may be more effective. You have been hired to design the test program. As part of your project briefing, you decide to explain the logic of statistical testing to the people who are going to be working for you.   In my opinion, Type II error would be more severe. This is because in this case people will not buy Drug B and hence will not avail better treatment for depression when it is in

How people are managed and how they lead. (There are four parts to the Assignment

How people are managed and how they lead. (There are four parts to the complete portfolio) - Assignment Example hostility, stress, guilt and sadness, increases the inevitability of an organization deviance, and how the outside world regards the firm or organization. Emotions normally are linked with some specific occurrences or events and are intense enough to interrupt thought processes. There are many consequences for allowing negative emotions to affect your general attitude at work. For a good organization, then emotions and emotion management plays a vital role in achieving its objectives. It is important to develop a desirable and observable emotional display as part of a job role. The ability to deal and manage emotions and emotional information in an organization helps workers in managing occupational stress and maintaining psychological well-being. This indicates that stress reduction and health protection could be achieved by increasing the personal resources of employees that comprise emotional intelligence. Additionally, stress reduction and health protection can be achieved by dec reasing work demands that cause stress. The increasing of EL skills responsible for successful job performance can help employees deal effectively with their emotional feelings, therefore reducing the level of job stress hence indirectly protecting their health (GRIFFIN & MOOREHEAD, 2012). Question 2 – Discuss, using ideas from the general model of stress, the causes (sources) of stress and thus how stress can be managed in the work place. In your response you must make reference to how the various causes of stress can be categorized. Work related stress is a harmful reaction a person has to undue demands and pressures placed on them at work. It is a chronic disease that result from conditions in the workplace that negatively affects a person’s performance or/and general welfare of his mind and body. Several mental and physical illness manifest job stress. But sometimes job stress can be disabling. In chronic situations a psychiatric consultation is recommended to validate the