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An evaluator wants to determine the proportion of parents, p, who participate in musical activities (e.g., listening to music, discussing music) with their children at home at least once per week as part of an evaluation of a weekly preschool music program. The evaluator obtains a list of N = 500 parents whose children participate in the weekly music program. Determine the number of parents who need to be surveyed to estimate p with a bound on the error of estimation of B = 0.05. Assume that the evaluator has no prior information available to estimate p.
For this exercise, you will open the SPSS sample file called workprog.sav and select two discrete variables and one continuous variable to build a histogram.
The groups were tested for self-esteem and self-judgment, and the bad hair group scored lower than the others.- Was this an observational study or a randomized experiment? Explain.
Finnish Furniture manufactures tables in facilities located in three cities- Reno, Denver, and Pittsburgh. The tables are then shipped to three retail stores located in Phoenix, Cleveland, and Chicago.
Part I checks your understanding of key concepts from Jackson and Trochim & Donnelly.
Which are the contexts in which supply commitments are done before random demand occurs and why?
Give an example of a repeated measures analysis of variance (ANOVA)--no examples of therapy or temperature.
Formulate a model that can use to estimate with the data that you described. Note: You can refer to the article on the topic in the course reader.
in a certain community 30 of the families own a dog and 20 of the families that own a dog also own a cat. it is also
1. True or False. Justify for full credit. (a) The normal distribution curve is always symmetric to its mean. (b) If the variance from a data set is zero, then all the observations in this data set are identical.
the probability of a roulette ball landing on black is approximately 47.4. find the probability that the ball lands on
Bowling balls the sample standard deviation was found to be 0.52 pounds. Construct a 95% confidence interval for the variance of the bowling ball weight.
when the null hypothesis for an anova analysis comparing four treatment means is rejectedselect onea. 4 comparisons of
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