An experiment was performed to compare the burning times of chemical flares with two different formulations. The results are:

Type 1: 65 83 64 65 86 82 85 74 90 72 66
Type 2: 64 73 57 69 67 56 76 77 89 64 59

Assuming the variances are equal. Answer the followings with an α of 0.05.

a. Test the hypothesis
b. Verify the equal variance assumption.

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

t hope this

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