Specify the fourth property of statistical population.
a. Representativeness
b. Correlation
c. Distribution
d. Average level
e. Variety
Specify the fourth property of statistical population. a. Representativeness b. Correlation c. Distribution d. Average level...
Which of the following is an accurate statement regarding sampling distribution? A. Each population exception rate and sample size has the same sampling distribution. B. Sampling distributions allow the auditor to make probability statements about the likely representativeness of any sample that is in the distribution. C. Auditors cannot use sampling distributions to draw statistical conclusions about the unknown population being sampled. D. A sampling distribution is a sample with characteristics the same as those of the population.
Specify the first stage of statistical research. a. Preparation of plan and program of research b. Development of statistical data and construction material c. Analyze the results of research d. Conclusions, proposals and implementation in practice e. Collection of material
Stratified sampling (the use of strata) enhances ________ of the population: A. representativeness B.. exclusion C. convenience D. purposefulness
1. How would you interpret correlation coefficient of: -0.95? A. Not a good correlation measure B. Week negative correlation C. Strong negative correlatio D. Not enough information to determine correlation 2. What statistical measures are used for describing dispersion in data? How do they differ from one another? A. Range, variance, and standard deviation B. Mean absolute deviation C. Mean, median, and mode D. Mean, standard deviation, and interquartile range 3. What is the difference between a population and a...
Which of the following distributions is considered the cornerstone distribution of statistical inference? a. Poisson distribution b. Normal distribution c. Geometric distribution d. Binomial distribution e. Uniform distribution
7. Average age in a population. Suppose the 100-vector a represents the distribution of ages in a population, with xi being the number of i-1 year olds, for i = 1, . . . , 100. Find an expression for the average age across the population. (You can assume that xメ0) Your expression must use vector or matrix notation; you cannot use a sum over ages You can use any notation we've encountered, including vectors, matrices, matrix-vector products, inner product,...
1. Match the correlation coefficient to its variable. Population Correlation (choose below) a. c b. p (Greek rho) c. r d.R c. Greek alpha Sample Correlation (choose below) a. c b. p (Greek rho) c. r d.R c. Greek alpha Question 7 1 pts Which of the correlation values represent a perfect linear relationship between x and y? 0-1 O1 0.05 100
Which is NOT a property of a normal distribution? A - Discrete X variables B - Symmetrical distribution C - Bell-shaped distribution D -Approximately 68% of the scores fall between + and -1 standard deviation from the mean If the mean of a distribution is 84, the mode is 52 and the median is 58, the distribution is: A Positively skewed B Negatively skewed C Symmetric D Cannot tell from this information A few people do very poorly on a...
4.19. Let Xl, X2, ... , X20 be a random sample of size n = 20 from an N(u, E) population. Specify each of the following completely (a) The distribution of (X (b) The distributions of X and Vn(X- ) 'E(X-H) (c) The distribution of (n - 1) S etibuti. 4.19. Let Xl, X2, ... , X20 be a random sample of size n = 20 from an N(u, E) population. Specify each of the following completely (a) The distribution...
Which of the following is NOT a property of the t-distribution? a. it is symmetric b. its a shape size grows large, it gradually approaches the normal distribution c. its shape (spread) is determined by the degrees of of freedom d. it has fatter tails than the normal distribution e. all the above are properties of the t distribution