Mathematics, 22.04.2021 01:40 tlester2005
For many years, working full-time has meant working 40 hours per week. Nowadays, it seems that corporate employers expect their employees to work more than this amount. A researcher decides to investigate this hypothesis.
0: The average time full-time corporate employees work per week is 40 hours.
: The average time full-time corporate employees work per week is more than 40 hours.
To substantiate his claim, the researcher randomly selects 250 corporate employees and finds that they work an average of 47 hours per week with a standard deviation of 3.2 hours.
In order to assess the evidence, we need to ask: (Select an answer choice below)
a.) How likely it is that in a sample of 250 we will find that the mean number of hours per week corporate employees work is as high as 47 if the true mean is 40?
b.) How likely it is that the true mean number of hours per week corporate employees work is 40?
c.) How likely it is in a sample of 250 we will find that the mean number of hours per week corporate employees work is as high as 47?
d.) How likely it is that the true mean number of hours per week corporate employees work is more than 40?
Answers: 2
Mathematics, 21.06.2019 18:30, jeffreyaxtell4542
10% of 1,900,000. show me how you got the answer
Answers: 2
Mathematics, 22.06.2019 03:00, korirosekc
Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =
Answers: 1
Mathematics, 22.06.2019 04:00, bbenaventbbbb9653
What's for breakfast? all people who ate at a certain restaurant were surveyed as to what they ordered on a particular sunday morning. 40 ate eggs 42 ate sausage 32 ate pancakes 13 ate sausage and eggs 15 ate pancakes and sausage 11 ate eggs and pancakes 6 ate all three items 3 people didn't eat any of the items how many people ate only pancakes? how many people ate at the resturant that morning? how many people didn't eat eggs?
Answers: 1
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