Since we are dealing with a proportion, it is determined by using the z-distribution that there is insufficient evidence to draw the conclusion that the proportion of all kochia plants that are resistant to glyphosate has increased because the test statistic is less than the critical value for the right-tailed test.
In this problem, we consider that:
- is the proportion in 2014.
- is the proportion is 2017.
<h3>What are the hypothesis tested?</h3>
- At the null hypothesis, we test if there has been no increase, that is, the subtraction is of 0.
- At the alternative hypothesis, we test if there has been an increase, hence:
<h3>What is the distribution of the difference of sample proportions?</h3>
The proportions and standard errors are given by:
Hence, the distribution has mean and standard error given by:
<h3>What is the test statistic?</h3>
It is given by:
In which p = 0 is the value tested at the null hypothesis, hence:
<h3>What is the decision?</h3>
- Considering a right-tailed test, as we are testing if the proportion is greater than a value, with a significance level of 0.05, the critical value is of
- There is insufficient information to establish that the fraction of all kochia plants that are resistant to glyphosate has increased because the test statistic is smaller than the crucial value for the right-tailed test.
Learn More about the z-distribution here: brainly.com/question/26454209
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Answer:
-3/5
Step-by-step explanation:
Go down 3 and over 5
Answer:
9.33 feet = 111.96 inches
Step-by-step explanation:
If we have similar triangles, the rate between matching sides is the same.
So the length of the smaller ladder (18 ft) over the length of the taller ladder (24 ft) is equal to the distance from the bottom of the smaller ladder to the tree (7 ft) over the distance from the bottom of the taller ladder to the tree (x ft):
18 / 7 = 24 / x
x = 7 * 24 / 18
x = 9.33 feet
To find this measure in inches, we just need to multiply by 12:
x = 9.33 * 12 = 111.96 inches
Answer:
3
5
12
30
50
the answers in order I believe I hope so
Answer: 36 days
Step-by-step explanation:
that’s the lowest multiple of 9 that also is a multiple of 12. It’s the LCF aka Least Common Factor