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Aleksandr [31]
3 years ago
12

A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental cor

n in Field B. At
harvest time, more ears of corn had grown in Field A than in Field B. The farmer concluded that more corn grew in Field A because of the type of corn planted.

Choose two other possible variables that could have caused more corn to grow in Field A.

A.
A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental corn in Field B. At
harvest time, more ears of corn had grown in Field A than in Field B. The farmer concluded that more corn grew in Field A because of the type

of corn planted.

Choose two other possible variables that could have caused more corn to grow in Field A. The type of soil in the field
B. The cost per ear of the corn
C. The flavor of each type of corn
D. The amount of sunlight in each field
E. The amount of corn planted in each field
Mathematics
2 answers:
gayaneshka [121]3 years ago
8 0

Answer:

ion know can u also be my tutor pls

Step-by-step explanation:

I am Lyosha [343]3 years ago
7 0

Answer:

its a and d obvioudly the price of the corn doesnt makethe corn be planted different

Step-by-step explanation:

so the soil causes the corn to grow in b if the soil was different then that would have caused it to grow less so A nd D

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Mandy has an IQ of 115. We know that the mean () IQ is 100 with a standard deviation of 15. There are 100 people in Mandy’s Alc
Alex787 [66]

Answer: 16

Step-by-step explanation:

Given : Mean : \mu=100

Standard deviation : \sigma =15

The value of z-score is given by :-

z=\dfrac{x-\mu}{\sigma}

For x= 115

z=\dfrac{115-100}{15}=1

The p-value : P(z>1)=1-P(z

Now, the number of people smarter than Many is given by :_

100\times0.1586553=15.86553\approx16

Hence, there are 16 members smarter than Mandy.

8 0
4 years ago
An angle passes through the point (-7,-5). What is the compass heading of this angle?
umka21 [38]
To find the angle use arc tan (-5/-7) which simplifies tips arctan(5/7). arc tan is tan to the power -1, which is also called inverse tan. The heading of the angle, if you drew this out on a graph your angle would be in the third quadrant and therefore the heading is south of west.
3 0
3 years ago
Calculate the loan and interest to be paid back if a man borrows 150,000 Naira for 10 years at 5% simple interest
MatroZZZ [7]

Answer:

41550

Step-by-step explanation:

5 0
2 years ago
2 wholes and 3/12 + 3/? = 2 wholes and 5/8 .what is the missing number ?
Sladkaya [172]
Basically you know that the 2 wholes from both sides cancel out.

Set up the equation, 5/8 = 3/12 + 3/x

3/x =  5/8 - 3/12

Set them to have a common denominator, 3/x = 15/24 - 6/24

3/x = 9/24

Simplify 9/24 and you will get 3/8

3/x = 3/8

Obviously this means x = 8


6 0
3 years ago
A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample m
svet-max [94.6K]

Answer:

Given : The sample mean score is 51.48 .

            The standard deviation for the population of test scores is 15.

             The nationwide average score on this test is 50.

To Find :  Perform the hypothesis test and compute the P-value?

Solution:

Sample size = n = 64

Since n > 30

So, we will use z test over here

We are supposed to find The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average.

Hypothesis : H_0:\mu \leq 50\\H_a:\mu>50

Formula of z test : z =\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

x = 51.48\\\mu = 50\\\sigma = 15\\ n = 64

Substitute the values

z =\frac{51.48-50}{\frac{15}{\sqrt{64}}}

z =0.789

Find the value of P(z) from z table

p(z)=0.7823

Since we are given that we are supposed to find The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average.

So, p value = 1-P(z)  = 1-0.7823=0.2177

In general , Level of significance is 0.05

So, p value is greater than alpha.

So, we accept the null hypothesis.

5 0
3 years ago
Read 2 more answers
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