logo

Statistics- Assignment (Solution)

   

Added on  2021-06-17

7 Pages650 Words53 Views
 | 
 | 
 | 
STATISTICSAssignmentStudent Name[Pick the date]
Statistics- Assignment (Solution)_1

Question 1 (a)The frequency distribution of data with a class size of 50 is represented as follows.(b)Histogram for percentage relative frequency of the data is pasted as follows.The histogram clearly highlights that the graph is symmetric as the highest point is shiftedtowards the left thus deviating from the expected bell curve. Hence, the given data is skewedwith potential of presence of outliers on the higher end. 1
Statistics- Assignment (Solution)_2

(c)It becomes evident from the above histogram that data is skewed. This makes the meanvulnerable to distortion owing to some values which are exceptionally high consideringthe data. Therefore, mean is not an optimum choice for indicating central tendency andinstead it needs to be replaced with median which is reliable in case of skewed data. Question 2 (a)The requisite Null and Alternative hypotheses The ANOVA table The t value for slope coefficient The p value for slope coefficient Let the value of alpha be 5% (level of significance)2
Statistics- Assignment (Solution)_3

End of preview

Want to access all the pages? Upload your documents or become a member.

Related Documents