Second year statistic - Study guides, Study notes & Summaries

Tutorial Letter 201/0/2023 Descriptive Statistics and Probability STA1501 Year module Department of Statistics PART A: 20 Marks (1 mark each) QUESTION 1 False. A qualitative variable for which there is some kind of ranking for the different values is called an ordinal variable. QUESTION 2 False. Samples in which the elements to be selected are drawn on the basis of probabilities in such a way that each element in the population has ...

PYC3704 MAY/JUNE EXAM ANSWERS QUESTIONS ASKED: On what level of measurement is a person’s nationality (e.g., South African, Mexican, and Spanish)? a. Nominal b. Interval Measure c. Rank Order Question 2 Not yet answered Marked out of 1.00 Not flaggedFlag question Question text Which one of the following alternative hypotheses would require a one-tailed test of significance? a. The mean anxiety score for boys differs from the mean score for girls. ...

PS 307 Exam | Questions with complete solutions A variable for which there is an infinite number of values between any two points on the scale is a ________ variable. a) Discrete b) Ratio c) Continuous d) Confounding A medical researcher interested in asthma symptoms wanted to know how symptoms were affected in dry versus humid conditions. The researchers recruited 18 asthma patients to spend four weeks under two conditions: sleeping with a dehumidifier for two weeks to create a "dry" enviro...

OB MIDTERM questions with correct answers 1. Alternative and complementary therapies Correct Answer-Allow for more client autonomy The nurse should be aware that a statistic widely used to compare the health status of different populations is the: Correct Answer-Infant mortality rate 3. To assess a mother's risk of having a low-birth-weight (LBW) infant, what is the most important factor for the nurse to consider? Correct Answer-African-American race 4. The nurses working at a newly ...

Test Bank for BMAL 590 Quantitative Research Techniques and Statistics A+ Updated 1. Which one of the following would not be considered a state of nature for a business firm? 2. Assume an investment is made a significant number of times using the same probabilities and payoffs. In this case, the average payoff per investment represents_____. 3. The level of doubt regarding the decision situation where both the possible states of nature and their exact probabilities of occurrence are known as w...

Uses of statistics - correct answer -Used to organize and summarize information -Used to determine exactly what conclusions are justified based on the results that were obtained Statistics: - correct answer set of mathematical procedures for organizing, summarizing and interpreting information Goals of statistical procedure - correct answer Accurate ...

WEEK 3 Quiz MATH ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS ANSWERS ALREADY GRADED A+ Given the following list of data, find the median. 19,11,33,24,5,8,16,32,22,17 Give your answer as a number only. For example, if you found the median was 20, you would enter 20. - CORRECT ANSWER-18 Is the statement below true or false?Continuous is the type of quantitative data that is the result of measuring. - CORRECT ANSWER-True When considering different sampling methods, cluster samplin...

Ch.10 Stats Practice Exam Questions 2024. Which of the following would represent independent measures? - CORRECT ANSWER The average number of traffic tickets among men and women is measured to see if there is a statistically significant difference. Measuring whether age has an effect on the amount of time an individual can hold his breath under water. A sample of 10-year-olds is compared with a sample of 18-year-olds. An independent-measures design is also known as a _______________ d...

1. Question: An adviser is testing out a new online learning module for a placement test. They wish to test the claim that on average the new online learning module increased placement scores at a significance level of α = 0.05. For the context of this problem, μD=μnew–μold where the first data set represents the new test scores and the second data set represents old test scores. Assume the population is normally distributed. 2. Question: A researcher is testing reaction times between the...

1. Question: An adviser is testing out a new online learning module for a placement test. They wish to test the claim that on average the new online learning module increased placement scores at a significance level of α = 0.05. For the context of this problem, μD=μnew–μold where the first data set represents the new test scores and the second data set represents old test scores. Assume the population is normally distributed. 2. Question: A researcher is testing reaction times between the...