statiscs

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6. Use the data from ASWCC, Chapter 5 #20 to answer the following questions.

(a) Graph the probability distribution of X.

(b) Calculate 𝜇 and 𝜎$. ""

(c) Calculate the (𝜇 ± 𝜎 ) and (𝜇 ± 2𝜎 ) intervals. What proportion of the """"

measurements will fall within these intervals? Does this result agree with Chebyshev’s Theorem? The Empirical Rule?

1. Case Study: Motion Picture Industry (ASWCC, Chapter 2, Case Problem 2). Use graphical methods to construct the following (do not write a report):

(a) frequency (i.e., histogram or relative frequency) distribution graphs for all 4 variables (hint: remember to use Sturges’ Formula and Excel’s Data Analysis tool).

(b) a scatter diagram to explore the relationship between total gross sales and opening weekend gross sales.

(c) a scatter diagram to explore the relationship between total gross sales and the number of theaters.

(d) a scatter diagram to explore the relationship between total gross sales and the weeks in release.