2 years ago

Im confused please help

Mathematics

2 answers:

sergeinik [125]2 years ago

8 0

Answer:

-5/2, -2, 1.7

Damm [24]2 years ago

6 0

1.7, -2, -5/2 Hope this helps

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Answer:

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Step-by-step explanation:

step 1

if 1,584 is decreased by 18%

we know that

$100\%-18\%=82\%=82/100=0.82$

Multiply the number by 0.82

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step 2

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Step-by-step explanation:

The confidence interval for mean difference is given by :-

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$23\pm (2.262)\times (4.2)\\\\= 23\pm9.5004\\\\=(23-9.5004,\ 23+9.5004)\\\\=(13.4996,\ 32.5004)$

Hence, the required confidence interval : (13.4996, 32.5004)

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Step-by-step explanation:

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