Answer Happy

The owner of the ABC garment is interested to study the wastage
of the factory. Factory is running in two shifts (morning and
evening). The value of the monthly wastage of the material shift
wise is given in the data file. The manager told to the owner that
on average, the value of monthly (both shifts) wastage is Rs.
4500.
The owner feels that the wastage is more than the value which is
communicated by the manager; therefore, he gives the data of the
last few months (given below) to you as statistician and assigns
the following three tasks:
Morning Shift
4227
4489
4417
4392
3943
3970
4405
4990
4444
4405
4398
4152
Evening Shift
3366
2964
3043
3804
3721
3675
3504
3236
3955
3420
Task #
3:
To test the equality of variances of wastage during the two shifts,
at 0.1 level of significance.
Solve according to following pattern:
Task # 1
Null Hypothesis
Alternative Hypothesis
Level of significance
Degree of freedom
Tabulated value of test statistic
X
SD
SE
Mean difference
tcal
Conclusion
Task # 2
Null Hypothesis
Alternative Hypothesis
Level of significance
Degree of freedom
Tabulated value of test statistic
X1-X2
SP
SED
tcal
Conclusion
Task # 3
S12
S22
df1
df2
Ratio of two variaces
1f0.05(df1
, df2)
f0.05(df2 , df1)
Lower Limit
Upper Limit
Conclusion
(Just write equal or Unequal)