Question 41Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich of the following is characteristic of descriptive statistics?Question 41Answera.A clustering of data points in groupsb.A rejection of a hypothesisc.A simple summary about the observations that have been maded.A confidence interval to determine true parameter valuesClear my choiceQuestion 42Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich is true about complementary events?Question 42Answera.There are generally many complements to one eventb.They are mutually exclusivec.If one occurs, the other also occursd.They are in exhaustiveClear my choiceQuestion 43Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich of the following is characteristic of a random variable?Question 43Answera.Has a value immune to chanceb.Has a single, fixed valuec.Has a set of possible different valuesd.Has only objective random processClear my choiceQuestion 44Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat are the two characteristics of a statistical relationship that are shown by scatter plots?Question 44Answera.direction and strengthb.strength and verticalityc.horizontality and verticalityd.strength and horizontalityClear my choiceQuestion 45Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich of the following is important to understand about population proportions?Question 45Answera.It is important to rely on the proportions expected within a sample of the populationb.It is important for the sample to be small for greater confidencec.It is important for the sample to be random for it to be reliabled.It is important to recognize that sample proportion is exactly the same as the population proportion

Which of the following statements shows a characteristic of a statistical question?

Question 31Not yet answeredMarked out of 1.00Flag questionTipsQuestion textIn the original field trial design for the Salk polio vaccine, only second graders with permission from their parents were administered the treatment. Thus, the treatment group became _________.Question 31Answera.self-selectingb.controlledc.randomd.skewedClear my choiceQuestion 32Not yet answeredMarked out of 1.00Flag questionTipsQuestion textIf elements in a sample data set increase arithmetically, then _____________.Question 32Answera.the mode and the arithmetic mean differ significantlyb.the median and arithmetic mean are equalc.the mode and the arithmetic mean are equald.the median and arithmetic mean differ significantlyClear my choiceQuestion 33Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow does the addition rule determine the probability of two events occurring?Question 33Answera.P(A or B) is the sum of the P(A) and P(B), minus the P(A and B)b.P(A or B) is the sum of the P(A and B) minus P(A) and P(B)c.P(A or B) is the sum of the P(A) and P(B)d.P(A or B) is the sum of the P(A) and P(B), minus the P(A)Clear my choiceQuestion 34Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich of the following would NOT be considered a potential cause for an outlier?Question 34Answera.random samplingb.changes in system behaviorc.human errord.fraudulent behaviorClear my choiceQuestion 35Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow large is the sample size, given a standard deviation of 8 and 95% confidence interval with an error of no more than 3 points?Question 35Answera.4.4b.19.36c.67.7d.30.1

The likelihood of an event occurring is estimated by Blank______.Multiple choice question.probabilitya hypothesisa theory

A definition of a statistical question is given below.Statistical question:Any question whose answer could involve working with more than one data value.In each situation below, determine whether the question is a statistical question.Situation Statistical question?(a) Susan asked several students at her school, "Would you prefer to live in the city or in the countryside?" Yes No(b) Hong asked Omar, "What is your favorite TV show?" Yes No(c) Trey asked the girls in his class, "During which month of the year is your birthday?" Yes No(d) Teresa asked the people in her town, "What is your favorite vegetable?" Yes No(e) Christine asked several of her friends, "What is your favorite color?" Yes NoExplanationRecheck

Given that  p-value is  0.0107  at a .05 level of significance, then ___.Group of answer choicesnull hypothesis should be rejectednull hypothesis should not be rejectednot enough information is given to answer this questionalternative  hypothesis should be rejected