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VikaD [51]
3 years ago
6

Assume you have collected data pairs (x, y) on a certain variety of tree. x is the number of weeks since the tree was planted an

d y is the height of the tree in inches. A plot of the data points with the best-fit line is given below. What age is predicted by the best-fit line for a height of 70 inches? 

Mathematics
1 answer:
lisov135 [29]3 years ago
4 0
We have to draw a horizontal line that goes trough 70 (half way between 60 and 80) and is parallel with the Age axe.
From the point where this line intersects the red line, we drop a vertical line to find out the age. It looks like is going to be 50, yet you got the graph and the ruler



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Natalka [10]

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

8 0
3 years ago
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Alisiya [41]

Answer:

Yes

Step-by-step explanation:

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___

<em>Feet to Inches</em>

1 foot is 12 inches, so 4 feet is 4×12 = 48 inches. Adding 9 inches to that gives ...

... 4' 9" = 57 inches

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6.279

Step-by-step explanation:

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Hope it helps ⚜

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Step-by-step explanation:

your answer is 84,000

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