Answer: False Difficulty: Medium 5. The sampling distribution of a sample statistic is the probability distribution of the population of all possible values of the sample statistic. Answer: True Difficulty: Easy 6. A sample statistic is an unbiased point estimate of a population parameter if the mean of the populations of all possible values of the sample statistic equals the population parameter. Answer: True Difficulty: Medium 7.
The alternative hypothesis is the hypothesis that sample observations are influenced by some non-random cause. 3. What is a test statistic? (0.5 points) A statistic is a single measure of some attribute of a sample. It is calculated by applying a function (statistical algorithm) to the values of the items of the sample, which are known together as a set of data.
causation. the syllogism. 5 points Question 6 Which one of the following hypothetical syllogisms is invalid? Answer If P, then Q. P. Therefore, Q. If P, then Q.
Errors due to interviewer bias and selection bias B. Only non-sampling errors C. Sampling errors only D. Sampling errors and errors due to selection bias 2) What is the difference between probability sampling and simple random sampling? A. Probability sampling is a type of simple random sample. B. Simple random sampling is a type of probability sampling.
3.) Find out the sample cutoff score. This stage is significant since it provides the examiner a position at which the null theory will be turned down. An instance of a cutoff score that could be utilized in a survey is 5%, or p < .05. 4.)
The steps in testing a research hypothesis It is difficult to survey all persons or objects within the research population, so samples are taken and analyzed. The sample data produces predicted results from the population. This is considered a hypothesis which is a proposed explanation made based on limited evidence as the initiation for further hypothesis testing. Hypothesis testing is a procedure used to determine whether the formed hypothesis is a valid statement and should not be rejected, or is unreasonable and should be rejected. There are 5 steps in the hypothesis testing.
University of Phoenix Material Dr. Zak Case Study Instructions READ THE FOLLOWING CASE STUDY. USE THE INFORMATION IN THE CASE STUDY TO ANSWER THE ACCOMPANYING FOLLOW-UP QUESTIONS. ALTHOUGH QUESTIONS 1 & 2 HAVE SHORT ANSWERS, YOU SHOULD PREPARE A 150- TO 200-WORD RESPONSE TO EACH OF THE REMAINING QUESTIONS. CASe Study DR. ZAK DEVELOPED A TEST TO MEASURE DEPRESSION. HE SAMPLED 100 UNIVERSITY STUDENTS TO TAKE HIS FIVE ITEM TEST.
Course Project – Part B James N. Lewis Devry University’s Keller School of Business Management Applied Managerial Statistics Math - 533 Instructor: Maria Ramjerdi Date: August 17, 2014 Introduction As part of a process to determine how they can more effectively service their current customers, AJ DAVIS department store chain collected data on a sample of 50 of their credit customers. The data that was collected included: Income in $1,000’s; Household-Size; Location (Rural, Urban, Suburban); Years customer lived in their current location; and existing Credit Balances for the department store’s credit card. After an exploratory analysis was done on the data listed above, it was felt that more statistical analysis was necessary.
A. the fair-weather liberal B. the all-weather liberal C. the timid bigot D. all of these 4. Who formulated a typology that shows how prejudice and discrimination are related but not the same thing? A. W.E.B. DuBois B. Charles Cooley C. Robert Merton D. Richard LaPiere 5. Which of the following statements is FALSE regarding the authoritarian personality? A.
Standard deviation is how much or how frequently scores differ from the mean. This is the most useful way of measuring how much scores deviate from one another because it takes and gathers information from each and every score. 5. The normal curve or normal distribution is a "bell-shaped curve" that displays the distribution of a lot of types of data. It is called bell-shaped because most of the scores are in the middle and few are towards either end.