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Olin [163]
3 years ago
6

A foresting service conducted a survey to see if tree farms that planted hardwood trees were more profitable over a 30-year peri

od than tree farms that planted softwood trees. The results of this study showed that hardwood trees had a 46% higher profit per acre. Are the results statistically significant?1. No, because planting softwood trees have a higher profit per acre.2. No, because there is not enough information given to make a conclusion.3. Yes, because the chance of getting a similar result is small.4. Yes, because planting hardwood trees have a higher profit per acre.
Mathematics
1 answer:
Advocard [28]3 years ago
8 0

Answer:

The results are statistically significant because planting hardwood trees have a higher profit per acre.

Step-by-step explanation:

From the question above,

It shows that hardwood trees had a 46% higher Profit per acre than softwood trees.

Meaning that for every $100 made on softwood trees, $146 profit would be made on hardwood trees i(including both primary and secondary expenses; making the hardwood trees more profitable.

The information given is enough to reach a conclusion that planting hardwood trees have a higher profit per acre than softwood trees.

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What's median number for the numbers 4,8,10,5,9
Stells [14]
4,5,8,9,10
First, in order to find the median you have to put each number in order from least to greatest.
Your median is the number in the middle. 
In this case that number is 8.
If you have an even amount of numbers, you will have to convert that into a decimal.
Hopefully this has helped!
5 0
3 years ago
Read 2 more answers
Aiden brought chocolate and vanilla cupcakes to school for his birthday. 12 students picked a vanilla cupcake and 88 students pi
White raven [17]

Answer:

the percentage is 12%

Step-by-step explanation:

Given that

The 12 students picked up the vanilla cupcake

And, 88 students picked up the chocolate cupcake

We need to find out the percentage of the students picked up a vanilla cupcake

So, the percenatge is

= (12) ÷ (12 + 88) × 100

= 12 ÷ 100 × 100

= 12%

Hence, the percentage is 12%

8 0
3 years ago
Which of the following must describe a irrational number? A. a number with a repeating or terminating decimal expansion B. a num
Olenka [21]

Answer:

D.

Step-by-step explanation:

A irrational number can be defined as those numbers which are real but can NOT be expressed in simple fractions. The term 'irrational' means 'a number which can not be expressed in ratio of two integers', 'no ratio.'

<u>When a irrational number is expressed in decimal, the numbers keep on expanding without repeating andd without terminating, which means it keeps on expanding infinitely.</u>

For example, π (pi) is an irrational number. When it is expressed in decimals it keeps on expanding non-repeatedly and unendingly.

Another example of an irrational number is √2.

Thus the correct statement that defines irrational number is option D.

5 0
3 years ago
Find the length of a square whose diagonal is 15cm​
Vladimir [108]
2a^2 = 225
So a^2 = 225/2
4 0
3 years ago
Homework:Assignment 3 Question 20 Score: 0 of 1 point A vending machine dispenses coffee into ​-ounce cup. The amount of coffee
xxMikexx [17]

Answer:

19.92

Step-by-step explanation:

To overfill 5% of the time ;

The Zscore (value) to the left of (1 - 0.05) = 0.95 is 1.645

Using this Zscore value with the Zscore formula :

Zscore = (x - μ) / σ

σ = 0.05 ; x = 20 ounce

Substituting into the Zscore formula :

1.645 = (20 - μ) / 0.05

1.645*0.05 = 20 - μ

0.08225 = 20 - μ

μ = 20 - 0.08225

μ = 19.91775

μ = 19.92

8 0
3 years ago
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