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Statistics: Examination Scores, Sample Size, ANOVA, Regression Model

Construct frequency distribution, cumulative frequency distribution, relative frequency distribution, cumulative relative frequency distribution, and percent frequency distribution for given data set. Construct histogram and comment on the shape of the distribution. Determine sample size and relationship between supply and unit price in regression analysis.

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Added on  2023-06-03

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This article covers topics such as examination scores, sample size, ANOVA, and regression model in statistics. It includes relevant hypotheses, coefficient of determination, coefficient of correlation, and slope coefficient. It also discusses the significance of variables such as price and advertising in sales.

Statistics: Examination Scores, Sample Size, ANOVA, Regression Model

Construct frequency distribution, cumulative frequency distribution, relative frequency distribution, cumulative relative frequency distribution, and percent frequency distribution for given data set. Construct histogram and comment on the shape of the distribution. Determine sample size and relationship between supply and unit price in regression analysis.

   Added on 2023-06-03

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Statistics: Examination Scores, Sample Size, ANOVA, Regression Model_1
Question 1
Examination scores
a. Frequency, cumulative frequency, relative frequency, cumulative frequency and percentage
frequency distribution with a class width of 10 for the examination scores is highlighted
below.
b. Histogram
1
Statistics: Examination Scores, Sample Size, ANOVA, Regression Model_2
Skew is apparent as the left tail is shorter than the corresponding value of the right tail. The
skew presence represents that data is not normally distributed (Flick, 2015).
Question 2
a. Sample size (N) = Degree of freedom (dof) +1
Degree of freedom (dof) = 39+1 = 40
Hence,
Sample size (N) = 40 +1 = 41
Therefore, the sample size for the given scenario is 41.
b. Relevant hypotheses
2
Statistics: Examination Scores, Sample Size, ANOVA, Regression Model_3

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