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Zinaida [17]
3 years ago
5

in an examination, 40% students passed in maths only, 30% passed in science only and 10% students failed in both subjects. if 20

0 students passed in science, find the total number of students ​
Mathematics
1 answer:
arsen [322]3 years ago
4 0

Answer: 666.66

Step-by-step explanation: 30% times 666.66 = 200.00001 because it is a repeating decimal.

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Answer:

We have sufficient evidence to conclude at α = .05 that the husband’s perception would be higher than the wife’s.

Step-by-step explanation:

The hypotheses testing procedure in the given scenario is

H0: Husband’s perception would be similar to the wife’s i.e. μh=μw

Ha: Husband’s perception would be higher than the wife’s i.e. μh>μw

Level of significance: α=0.05

Test statistic: t=2.776

Critical region: t>t(0.05,9)=1.833

Conclusion: As the calculated value of t lies in critical region, so we reject our null hypothesis at 0.05 level of significance. Thus, we have sufficient evidence to conclude at α = .05 that the husband’s perception would be higher than the wife’s.

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