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mel-nik [20]
3 years ago
12

A proposed null hypothesis states that there is no difference in the water consumption of households in two districts. The sampl

e mean difference is 8.5 liters, and the standard deviation of the distribution of the difference in sample means is 4.5 liters.
The null hypothesis must be accepted if we choose the ___ confidence interval.

A. 68%

B. 95%

C. 99.7%
Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
6 0
A
Hope I helped!!!!!!
aliya0001 [1]3 years ago
3 0

The null hypothesis must be accepted if we choose 99.7.

 

In inferential statistics, the term "null hypothesis" usually refers to a general statement or default position that there is no relationship between two measured phenomena, or no association among groups.

 

The correct answer between all the choices given is the last choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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Savatey [412]
Each of A, C, and D are rational, so presumably B is the answer here.

A is rational, since 10\times0.3=3, so 0.3=\dfrac3{10}.

C is also rational. If x=0.777\ldots, then 10x=7.777\ldots. This would mean 10x-x=9x=7, and so x=\dfrac79.

D is rational by a similar argument. If x=0.4545\ldots, then 100x=45.4545\ldots. So, 100x-x=99x=45, which means x=\dfrac{45}{99}=\dfrac5{11}.
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3 years ago
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prisoha [69]

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Step-by-step explanation:

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0.5m = 0.75 Solve for m Pls and thx
Likurg_2 [28]

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The points (4, 9) and (0, 0) fall on a particular line. What is its equation in slope-intercept form?
BlackZzzverrR [31]

Answer:

The equation of the line would be y = 4/9x

Step-by-step explanation:

In order to find the equation, we first need to find the slope. We can do this by using the slope equation with the points.

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