1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
victus00 [196]
3 years ago
12

Rubber rabbitbrush plants display heritable variation in plant height and insect-induced gall formation. In a field study, resea

rchers investigated the relationship between plant height and gall number for the rubber rabbitbrush plants in a natural population. The researchers used the data they collected to perform a chi-square test of independence. The null hypothesis for the chi-square test was that plant height and gall number are independent. The data for the chi-square test are presented in Table 1.
Table 1. Data for the chi-square test of independence

Height Category (cm)(cm) Number of Plants with Ten or Fewer Galls Number of Plants with More than Ten Galls
0–30 34 6
31–60 22 16
61–90 14 21
91–120 10 27
The researchers calculated a chi-square value of 29.25. If there are three degrees of freedom and the significance level is p=0.05p=0.05, which of the following statements best completes the chi-square test?

The critical value is 0.05, and the null hypothesis cannot be rejected because the calculated chi-square value is greater than the critical value.

A. he critical value is 0.05, and the null hypothesis can be rejected because the calculated chi-square value is greater than the critical value.

B. The critical value is 7.82, and the null hypothesis cannot be rejected because the calculated chi-square value is greater than the critical value.

C. The critical value is 7.82, and the null hypothesis can be rejected because the calculated chi-square value is greater than the critical value.
Mathematics
1 answer:
salantis [7]3 years ago
3 0

Answer:c

Step-by-step explanation:

You might be interested in
Find the median of the following numbers. 14, 17, 21, 28, 40. ​
Elis [28]

Answer:21

Step-by-step explanation: The median is the number in the middle sorted from least to greatest, here 21 is the middle number.

4 0
3 years ago
Read 2 more answers
I think I'm getting better. But just in case I still don't understand , what are decimals?
vagabundo [1.1K]
Decimals are a number and a dot and more numbers
8 0
2 years ago
Read 2 more answers
In a survey of more than 6000 people, 95% of the respondents claimed to prefer Penelope's Puffy Popcorn over any other brand of
sukhopar [10]
<span>A. People who were promised free samples of Penelope's Puffy Popcorn for completing the survey</span>
4 0
3 years ago
Read 2 more answers
Lines a and b are parallel.<br><br><br><br> What is the measure of angle m?
Arisa [49]

Answer: 55 degrees

Step-by-step explanation:

180-125=55

125 and m make a half a turn which equals 180

4 0
3 years ago
Find the unknown side length x write your answer in simplest radical form
Sauron [17]

Answer:

(B)4\sqrt{37}

Step-by-step explanation:

First, we determine the height of the triangle which we label as y.

Using Pythagoras Theorem.

25^2=7^2+y^2\\y^2=25^2-7^2\\y^2=576\\y=\sqrt{576}\\y=24

In the smaller right triangle with hypotenuse, x

Base = 7-3 =4 Units

Height, y= 24 Units

Therefore, applying Pythagoras Theorem.:

x^2=24^2+4^2\\x^2=592\\x=\sqrt{592}\\ x=4\sqrt{37}

5 0
3 years ago
Other questions:
  • A construction crew is lengthening a road. The road started with a length of 59 miles, and the crew is adding 4 miles to the roa
    15·1 answer
  • at the bank, Brent exchanges $50 in bills for 50 one dollar coins. the total mass of the coins is 405grams.estimate the mass of
    9·2 answers
  • Chuck drops a rock from a height of 70 m. How long will it take the rock to hit the ground? Use the formula h(t)=−4.9 t 2 + v o
    14·2 answers
  • Are the two graphs functions or not and why or why not
    8·2 answers
  • What is 25 miles/hours equal to feet/seconds
    7·1 answer
  • Write the equation of a base 10 logarithmic function with a horizontal translation of 3 units to the right
    14·1 answer
  • Manuela makes $21 in commissions over the first three hours that she worked selling magazines. How many dollars must she make du
    11·2 answers
  • Write a real world problem for the equation y=3/5x+100
    12·1 answer
  • The lifespan of a hamster is 6 years less than that of a rabbit. The lifespan of a raccoon is 3 times that of the hamster. If th
    12·1 answer
  • Help me please!!°-°​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!