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A sample of college students and a separate sample of adults aged 30-59 were surveyed regarding the amount of fruit they eat each day. The results are shown in the histograms below with students on the left and adults on the right.
1. What is the shape of this distribution for the students? symmetrical
2. What is the sample size for the adults?
3. What is the relative frequency for the adults who eat 1 serving of fruit?
4. How tall is the 5th bar (be careful) in the adult histogram? What does that tell you about the situation?
5. Without doing any calculations, would you say the adults or the students eat more fruit on average? Use the histograms to give a reason for your answer.
6. Give the mean amount of fruit consumed by the students. Make sure to include the proper symbol. Also show or tell how you calculated the mean.
Analysis of covariance (ANCOVA) It is initially used for an expansion of the analysis of variance which permits to the possible effects of continuous concomitant variables (suc
CALCULATE THE PERCENTAGE OF REFUNDS EXPECTED TO EXCEED $1000 UNDER THE CURRENT WITHHOLDING GUIDELINES
1 Se toma una muestra de 81 observaciones con una desviación estándar de 5. La media de la muestra es de 40. Determine el intervalo de de confianza de 99% para la media
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simplified formulae
calcation
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Uses Arithmetic mean is widely used because of the following reasons: Mean is the simplest average to understand and easy to compute. It
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