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pychu [463]
3 years ago
10

Plot the solution set of |-x|=3.5

Mathematics
1 answer:
erica [24]3 years ago
4 0
3.5 because anything inside those lines is positive
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Hi, can you help me answer this question please, thank you!
matrenka [14]

It is given that the sample size is 17.

So degrees of freedom is 16.

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Use the t table or a tool to find the critical t value as below:

The one tail t value for 80 percent confidence is 0.865 using t table.

So the critical value is 0.865.

8 0
1 year ago
Can you help me solve this word problem?
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There are 82 chairs at a birthday party. The chairs need to be lined up in equal-sized rows. How many possible ways can the chai
natali 33 [55]

Answer:

The number of possible ways can the chairs be lined up is 2 rows of 41.

Given that,

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5 0
2 years ago
Hypothesis testing on samples with fewer than 30 participants can be carried out by using the t-value for the corresponding leve
Eva8 [605]

Answer: true

Step-by-step explanation:

Z-tests are statistical calculations that can be used to compare the population mean to a sample mean The z-score is used to tellsbhow far in standard deviations a data point is from the mean of the data set. z-test compares a sample to a defined population and is typically used for dealing with problems relating to large samples (n > 30). Z-tests can also be used to test a hypothesis. Z-test is most useful when the standard deviation is known.

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Both tests (z-tests and t-tests) are used in data with normal distribution (a sample data or population data that is evenly distributed around the mean).

3 0
3 years ago
Maya is helping a gardener plant 300 bulbs. They plant 20% of the bulbs on Monday and 30% of the bulbs on Tuesday. Maya says thi
Katyanochek1 [597]

Answer:

because the total is 300 not 100 so 50 is not reasonable because that is the percentage they planted and since it is more than 100 then it should be a percent of 300 not 100. Maya is wrong about placing 50 bulbs instead they placed 150.

Step-by-step explanation:

8 0
3 years ago
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