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Likert scales is often used in the studies of attitudes in which the raw scores are based on the graded alternative responses to each of a series of queries. For instance, the subject might be asked to indicate his/her degree of agreement with each of the series of statements relevant to the attitude. The number is attached to each possible response, for example
1:strongly approve; 2:approve; 3:undecided; 4:disapprove; 5:strongly disapprove; and the total of these used as the compo- site score. A generally used Likert-type scale in the medicine is the Apgar score used to appraise status of the newborn infants. This is the total of the points (0,1 or 2) allotted for each of the ?ve items:
* heart rate (is over 100 beats per minute 2 points, slower 1 point, no beat 0);
* the respiratory effort;
* the muscle tone;
* the response to simulation by the catheter in the nostril;
*the colour of skin.
The Null Hypothesis - H0: There is no heteroscedasticity i.e. β 1 = 0 The Alternative Hypothesis - H1: There is heteroscedasticity i.e. β 1 0 Reject H0 if Q = ESS/2 >
Prevalence : The measure of the number of people in a population who have a certain disease at a given point in time. It c an be measured by two methods, as point prevalence and p
Regression line drawn as y= c+ 1075x ,when x was2, and y was 239,given that y intercept was 11. Calculate the residual ?
Basic reproduction number : A term used in the theory of infectious diseases for the number of secondary cases which one case would generate in a completely susceptible population.
The probability distribution of the various observations is required to obtain the run of two successes in the series of Bernoulli trials with the probability of success equal to a
The special cases of the probability distributions in which the random variable's distribution is concentrated at one point only. For instance, a discrete uniform distribution when
Consider a decision faced by a cattle breeder. The breeder must decide how many cattle he should sell in the market each year and how many he should retain for breeding purposes. S
The graphic representation of the alternatives in a decision making problem which summarizes all the possibilities foreseen by the decision maker. For instance, suppose we are give
historigrams and histogram
ain why the simulated result doesn''t have to be exact as the theoretical calculation
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