Description
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Business Stats
Data Set: Sample of 7 different species of fish has been taken and their weight in grams, lengths (vertical, diagonal, cross given as length 1, length 2 and length 3 respectively), height and width in cm is given below:
Q-1:
a. Find the mean and standard deviation for each type of fish for every variable.
b. If you need to choose a fish on the basis of weight, which fish you choose?
c. Find mean, median, quartiles for the entire data set for each variable.
Q-2: Regress the following:
a. Taking weight as dependent variable and height as independent variable. Is variable is found to be significant?
b. Taking weight as dependent variable and width as independent variable. Is variable is found to be significant?
c. Taking weight as dependent variable and length1, length 2 and length 3 as independent variable. Are variables is found to be significant? Which variable is not significant?
d. Taking weight as dependent variable and height, width, length 1, length 2 and length 3 as independent variable.
e. On basis of adjusted R square compare the model of part a, b, c and d. which model is best to predict weight? (10 Marks)
Q-3 The daily COVID 19 cases (in hundred) for Delhi for past 2 week is summarize in the following table:
a. Using exponential smoothing method forecast the cases for 15 days, taking alpha as 0.3 and Initial forecast is the average of all data. (5 Marks)
b. Using linear trend analysis, find the trend line for number of COVID 19 cases in Delhi and forecast for next 3 days. Also compute the Mean Square Error. (5 Marks)
For Nmims Assignments Contact
[email protected]
+91 95030-94040
doc_813217778.doc
For Nmims Assignments Contact
[email protected]
+91 95030-94040
Business Stats
Data Set: Sample of 7 different species of fish has been taken and their weight in grams, lengths (vertical, diagonal, cross given as length 1, length 2 and length 3 respectively), height and width in cm is given below:
Q-1:
a. Find the mean and standard deviation for each type of fish for every variable.
b. If you need to choose a fish on the basis of weight, which fish you choose?
c. Find mean, median, quartiles for the entire data set for each variable.
Q-2: Regress the following:
a. Taking weight as dependent variable and height as independent variable. Is variable is found to be significant?
b. Taking weight as dependent variable and width as independent variable. Is variable is found to be significant?
c. Taking weight as dependent variable and length1, length 2 and length 3 as independent variable. Are variables is found to be significant? Which variable is not significant?
d. Taking weight as dependent variable and height, width, length 1, length 2 and length 3 as independent variable.
e. On basis of adjusted R square compare the model of part a, b, c and d. which model is best to predict weight? (10 Marks)
Q-3 The daily COVID 19 cases (in hundred) for Delhi for past 2 week is summarize in the following table:
a. Using exponential smoothing method forecast the cases for 15 days, taking alpha as 0.3 and Initial forecast is the average of all data. (5 Marks)
b. Using linear trend analysis, find the trend line for number of COVID 19 cases in Delhi and forecast for next 3 days. Also compute the Mean Square Error. (5 Marks)
For Nmims Assignments Contact
[email protected]
+91 95030-94040
doc_813217778.doc