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Lina20 [59]
4 years ago
12

Consider a binomial experiment with n trials and r successes. To construct a test for a proportion p, what value do we use for t

he z value of the sample test statistic?
r/n
(r/n)2
n/r
2r/n
Mathematics
1 answer:
madam [21]4 years ago
3 0

Answer:

value we use for z value of  sample test  is r/n

Step-by-step explanation:

Given data

proportion p

trials  = n

successes = r

to find out

what value we use for z value of  sample test

solution

here

we know that

Probability of a success in single trail test = Number of successes/Number of trails

Probability of a success in single trail = r / n

so that

value we use for z value of  sample test  is r / n

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Answer:

A bus can carry 22 students and a van can carry 11 students.

Step-by-step explanation:

Let the number of students bus can carry be 'b'.

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Given:

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Also Given:

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So we can say that;

Number of bus multiplied by number of students bus can carry plus Number of vans multiplied by number of students van can carry is equal to Number of students.

framing in equation form we get;

7b+2v=176  ⇒ Equation 2

Now multiplying equation 2 by 5  we get;

5(7b+2v)=5\times176

35b+10v=880 ⇒ Equation 3

Now multiplying Equation 1 by 2 we get;

2(6b+5v)=187\times2

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Subtracting equation 4 from equation 3 we get;

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