In a clinical trial, 780 participants suffering from high blood pressure were ra
ID: 3206884 • Letter: I
Question
In a clinical trial, 780 participants suffering from high blood pressure were randomly assigned to one of three groups. Over a one-month period, the first group received received a low dosage of an experimental drug, the second group received a high dosage of the drug, and the third group received a placebo. The diastolic blood pressure of each participant was measured at the beginning and at the end of the period and the change in blood pressure was recorded. Identify the experimental units. The three different groups The treatment (i.e., placebo, low dosage of drug, or high dosage of drug) The participants in the experiment The diastolic blood pressures of the participants An education researcher was interested in examining the effect of the teaching method and the effect of the particular teacher students' scores on a reading test. In a study, there are four a different teachers (Juliana, Felix, Sonia, and Helen) and three different teaching methods (method A, method B, and method C). The number of students participating in the study is 258. Students are randomly assigned teaching method and teacher. Identity the response variable. Teaching method score on reading test Teacher Method A, method B, method C Classify the data as either discrete or continuous. The average speed of cars passing a busy intersection between 4:30 PM. and 6.30 PM. on a Friday is 32.3 mi/h. Continuous Discrete The following table shows the heights of the five tallest mountains in North America. What kind of data is given in the third column of the table? Discrete Continuous What type of data is provided by the statement "Helen finished in 10th place in the ice dancing competition? Continuous Discrete The number of cars passing a busy intersection between 4:30 PM. and 6:30 PM on a Monday is 2, 200. Continuous Discrete A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157 lb. Statistic ParameterExplanation / Answer
10) Continuous - data belong to continuous range
11) Discrete - Ranks are discete
12) Discrete - Rank is discrete
13) Discrete - number of cars is discrete
14) Parameter - As average defines the sample it is parameter