![subject](/tpl/images/cats/User.png)
SAT, 02.12.2020 16:40 vaelriacb5317
A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost for type II ovens. A sample of 60 type I ovens has a mean repair cost of $77.22, with a standard deviation of $22.46. A sample of 65 type II ovens has a mean repair cost of $73.73, with a standard deviation of $10.62. Conduct a hypothesis test of the technician's claim at the 0.1 level of significance. Let μ1 be the true mean repair cost for type I ovens and μ2 be the true mean repair cost for type II ovens.
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on SAT
![question](/tpl/images/cats/User.png)
SAT, 26.06.2019 05:30
An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.
Answers: 1
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/User.png)
SAT, 28.06.2019 04:00
The structure of adenosine triphosphate (atp) is shown here. which statement best explains how energy stored in the chemical bonds of atp can be released.
Answers: 1
![question](/tpl/images/cats/User.png)
SAT, 29.06.2019 06:30
The fairies in disney's sleeping beauty are named fand maleficent. which name contains a root meanina. florab. faunac. merryweatherd. maleficent
Answers: 1
You know the right answer?
A technician compares repair costs for two types of microwave ovens (type I and type II). He believe...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 06.03.2021 15:30
![question](/tpl/images/cats/en.png)
English, 06.03.2021 15:30
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2021 15:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2021 15:30
![question](/tpl/images/cats/en.png)
English, 06.03.2021 15:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2021 15:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.03.2021 15:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 06.03.2021 15:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.03.2021 15:30
![question](/tpl/images/cats/geografiya.png)
Geography, 06.03.2021 15:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 06.03.2021 15:40
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2021 15:40
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.03.2021 15:40
![question](/tpl/images/cats/health.png)
Health, 06.03.2021 15:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.03.2021 15:40