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LUCKY_DIMON [66]
3 years ago
5

X=y^2-1

Mathematics
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

let me just guess 2x =4

Step-by-step explanation:

yUH yuhbyuh yuh

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A brochure claims that the average maximum height for a certain type of plant is 0.7 m. A gardener suspects that this is not acc
larisa [96]

Answer:

As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

Step-by-step explanation:

1. Relevant data:

\mu=0.70\\N=40\\\alpha=0.05\\X=0.65\\s=0.20

2. Hypotesis testing

H_{0}=\mu=0.70

H_{1} =\mu< 0.70

3. Find the rejection area

From the one tail standard normal chart, whe have Z-value for \alpha=0.05 is 1.56

Then rejection area is left 1.56 in normal curve.

4. Find the test statistic:

Z=\frac{X-\mu_{0} }{\sigma/\sqrt{n}}

Z=\frac{0.65-0.70}{0.20/\sqrt{40}}\\Z=-1.58

5. Hypotesis Testing

Z_{\alpha}=1.56\\Z=-1.58

-1.58

As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

4 0
3 years ago
What is the area of this trapezoid
padilas [110]
Your answer is <span>132^2 

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4 0
3 years ago
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This box plot shows information about the marks scored in a test.
aliina [53]
Since 120 students gained less than 70, and 70 is the upper quartile, 120 people are in the 75% of all the students so we need to find the total number of students.
we need to multiply 0.75 (75%) by something to get 120. which is 160 (the total number of all students).
and since 48 is the median score, find 50% of 160 which is 80!
hope this helps :)
4 0
2 years ago
The base of a rectangular prism has a length of 4 centimeters and has a width of 2 centimeters.The height of the prism is 3 cent
coldgirl [10]
Answer:
24
Explanation:
V = whl (width times height times length)
V = (2)(3)(4)
V = (6)(4)
V = 24

6 0
2 years ago
PLEASE HELP ME!!
enyata [817]

Answer:

1/3

Step-by-step explanation:

5 0
3 years ago
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