A study claims that all adults spend an average of 14 hours or more on chores during a weekend. A researcher wanted to check if this claim is true. A random sample of 200 adults taken by this researcher showed that these adults spend an average of 14.65 hours on chores during a weekend. The population standard deviation is known to be 3.0 hours.
a. Find the p-value for the hypothesis test with the alternative hypothesis that all adults spend more than 14 hours on chores during a weekend. Will you reject the null hypothesis at α = .05? b. Test the hypothesis of part a using the critical-value approach at α = .05.
Answers: 2
History, 21.06.2019 16:30, springlcp2nk7h
According to darwin’s theory of evolution, how are the finches that live on the galapagos islands similar to members of a family tree? all of the finches share similar traits. all of the finches share common ancestors. all of the finches are able to reproduce. all of the finches are adapted to survive the same conditions.
Answers: 3
History, 21.06.2019 19:30, sreyasusanbinu
What led to the environmental damage that caused the dust bowl? 1. desert winds emerging from the southwest 2. rotating crops every year and having fallow land 3.overplanting throughout the great plains 4.a year-long drought
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History, 21.06.2019 22:30, alyssa32900
How did a woman’s education differ from a man’s education prior to the mid-19th century? a. women’s schools were unsanitary. b. women’s teachers were inadequate. c. women’s opportunities were unequal. d. women’s schools were more expensive
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A study claims that all adults spend an average of 14 hours or more on chores during a weekend. A re...
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