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storchak [24]
3 years ago
11

At one school, the average amount of time that spend watching television each week is The principal introduces a campaign to enc

ourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased from the previous mean of
Mathematics
1 answer:
faltersainse [42]3 years ago
4 0

Answer:

21.6 hours

Step-by-step explanation:

Hypothesis testing allows to identify a event test. The correct order of the steps of a hypothesis test is given following  

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

These steps are performed in the given sequence to test a hypothesis.

The principal tests the hypothesis with a mean of 21.6 hours for the determination of average amount of time spent watching television.

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well, 120,000 has 4 zeros and 12,000 has 3 zeros, so if we divide 120,000 by 10 we get 12,000, just to make it short, 12,000 is one tenth of 120,000 and thus the 10%.

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2x+25=6x-7
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The answer is :

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Please help asap! giving brainliest for those who help!!
dsp73

Answer:

I think this is right:

50:50

5/10

0.5

50%

Step-by-step explanation:

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