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Frequency Distribution - PDF

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Added on  2021-05-30

Frequency Distribution - PDF

   Added on 2021-05-30

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STATISTICSStudent Name[Pick the date]
Frequency Distribution - PDF_1
Question 1 (a)The requisite frequency distribution table is shown below:(b)Histogram of percentage relative frequency is shown below:Based on the above shown histogram, it can be said that a long right side tail is the indication ofthe presence of positive skew in the data. Also, the data is asymmetrically distribution and also,there are some outliers situated on the right side of the data. Hence, the data is not normallydistributed. 1
Frequency Distribution - PDF_2
(c)Considering the asymmetric shape of the graph and the potential presence of outliers, itwould be recommended to use median as the preferred indicator of location and notmean. The mean in such cases can be skewed owing to present of high values and hencemay represent an exaggerated indication of central location. Question 2 (a)Alpha (level of significance) = 0.05H0:β=0H1:β0It can be said based on the above table that for slope coefficient the p value is lesser than alpha (0.00<<0.05). Therefore, sufficient evidence is present to reject the null hypothesis and to accept the alternative hypothesis. Hence, the conclusion can be drawn that variables demand and prices exhibit a significant relationship.(b) The value of coefficient of determination is computed below:R2=SSRSST2
Frequency Distribution - PDF_3

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