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Students were asked to rate their instructor's preparation for class as being excellent, good, or needs improvement.
a. If a student feels the instructor does an average job, what response will he or she probably select?
b. The options provided result in biased responses to the instructor's survey; will they tend to overestimate or underestimate the quality of the instructor's preparation?
c. Should the instructor summarize results with means or with proportions?
at parkview at any given time the probability that a randomly selected student is a female is 30.with this binomial
If the P value for any of the main effects helpful in determining whether (a) the interaction is significant, (b) whether the main effect should be included in the model
The two machines were set to do the work together but after 2 ½ hours B broke down leaving A alone to complete the rest of the work. How long did it take machine A to do the remaining work.
Girls' cross-country times: a contrast (optional). Continue your analysis of the data from the previous problem by comparing average race time during the first half of the season with the average for the second half.
Give the values of the variances for the three groups.- Find the pooled variance.- What is the value of the pooled standard deviation?
As the teacher when situation like the above take place describe what would you say to guide children using effective communication and conflict resolution strategies. Be sure to respond based on the content
Draw a picture of the appropriate sampling distribution, and show where the value x‾1 - x‾2 = 2 falls on it.- Find the value of the standardized statistic corresponding to x‾1 - x‾2 = 2.
hurricane katrina forced insurance companies to examine policy rates and originally determined that the average claim
Identify the variable being measured and describe the sample as it relates to the population.
Find the width of each interval by subtracting the lower proportion from the upper proportion, and state which interval is wider.
The following table gives the opinion on collective bargaining by a random sample of 200 employees of a school system, belonging to a teachers' union.
Describe the shape of each histogram.Because of the shapes, what measures of the center should be compared, the means or the medians?
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