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liubo4ka [24]
3 years ago
10

What's the rate per hour that tears were made if 234 were made in six hours

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0
39  and hour because 234/6 = 39
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Answer:

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Step-by-step explanation:

The given data is

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1) Let the hypotheses be

H0: ud= 25 against the claim    Ha: ud ≠25

H0 : mean difference in the  age of onset of symptoms and age of diagnosis is  25 months  .

Ha:   mean difference in the  age of onset of symptoms and age of diagnosis is not 25 months.

 

2) The degrees of freedom = n-1= 15-1= 14

3) The significance level is 0.05

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The critical region is ║t║≤ t (0.025,14) = ±2.145

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Sd= 23.178  (using calculators)

Therefore

t= d`/ sd/√n

t= -38.6/ 23.178√15

t= -1.655/3.872= -0.427

5) Since the calculated value of t =-0.427 does not  fall in the critical region so we accept H0 and conclude that there is enough evidence to show that mean difference in the  age of onset of symptoms and age of diagnosis is  25 months  .

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Step-by-step explanation:

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Step-by-step explanation:

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