The health of employees is monitored periodically by weighing them. A sample of 54 employees has a mean weight of 183.9 lbs. Assume (alpha) is known to be 121.2 lbs. use a .10 significance level to test the claim that the population mean of all such employees weights is less than 200 lbs.
Hypothesis H0 H1 :
Test Stat;
p value
Conclusion about H0
An article reports: 34% of American fathers take no responsibility for child care. A researcher claims that figure is higher for fathers in “Littlestown“ A random sample of 234 fathers from Littletown yielded 96 who did not help with childcare. Test the researcher’s claim at the 0.05 significance level.
Hypothesis H0,H1:
Test statistic:
Critical valve:
Conclusion about H0 :
In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring stricter gun control. Use a significance level of 0.05
Hypothesis H0,H1:
Test statistic:
Critical valve:
Conclusion about H0 :
2006-12-12
14:34:37
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2 answers
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asked by
cozdabuch
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Science & Mathematics
➔ Mathematics