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tatuchka [14]
2 years ago
10

The instructor thinks that the students may have answered the questions by guessing, so that the probability that any given answ

er is correct is . Under this null hypothesis, the number of correct answers has a binomial distribution with trials and success probability . Perform a chi-square test of this hypothesis. Can you reject at the level? Use the -value method with the TI- Plus calculator.
Mathematics
1 answer:
Lisa [10]2 years ago
5 0

Answer:

hmmmm if theres choices its B

You might be interested in
#7. What are the values/ how do I do it
Tasya [4]

Answer:

x =2

SK = 21

KY = 13

SY = 34

Step-by-step explanation:

we can see from the picture the following:

SK + KY = SY  equation 1

SK=13x-5    equation 2

KY = 2x+9    equation 3

SY = 36-x     equation 4

using equation 2, equation 3 and equation 4 in equation 1 we have:

13x - 5 +  2x + 9 = 36-x  

15x +4 = 36 - x

15x +x = 36-4

16x = 32

x = 32/16

x= 2

using x as 2 we evaluate it in equation 2, equation 3 and equation 4:

SK=13(2)-5 = 21

KY= 2(2) +9 = 13

SY = 36-2 = 34

5 0
3 years ago
What’s the correct answer for this?
cricket20 [7]

Answer:   a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help anyone please i need it
zheka24 [161]

Answer:

The sum is equal to -905,200

Step-by-step explanation:

we know that

The formula to calculate the sum is equal to

Sn=n\frac{(a1+an)}{2}

In this problem

n=775 -----> number of terms

a1 is the first term

a1=(-3(1)-4)=-7

an is the last term

an=(-3(775)-4)=-2,329

substitute

Sn=775\frac{(-7-2,329)}{2}=-905,200

4 0
3 years ago
Alex makes 60% of the shots he takes in basketball. What is the probability that Alex
galina1969 [7]

Answer:60/100

Step-by-step explanation:

60/100 idk

7 0
2 years ago
Read 2 more answers
What is another way of writing the following expression?
Otrada [13]
It would be c. You always start with what’s between the parentheses. So start with 4+5 which equals 9. Then you’ll do 9+2 which is 11. And there’s your answer
5 0
2 years ago
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