3 years ago

If 16 our of 80 students in a computer class a girls then what percent in the class are boys

1 answer:

mina [271]3 years ago

3 0

80% is the answer to ur question

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liberstina [14]

Answer:

The correct option is a

Step-by-step explanation:

From the question we are told that

The sample size is n = 415

The sample proportion is $\r p = 0.49$

Now

The null hypothesis is $H_o : p = 0.3$

The alternative hypothesis is $H_a : p \ne 0.3$

The test statistics is mathematically evaluated as

$t = \frac{\r p - p }{ \frac{\sqrt{ p (1- p )} }{n} }$

substituting values

$t = \frac{0.49 - 0.3 }{ \sqrt{ \frac{0.3 (1- 0.3 ) }{415} }}$

$t = 8.446$

8 0

4 years ago

Rudiy27

Answer: SHOW THE TABLE PLZ and then i can answer. I don't know what this is.

Step-by-step explanation:

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3 years ago

PilotLPTM [1.2K]

Answer: 1 and 2 only

Step-by-step explanation:

4 0

3 years ago

Igoryamba

400 i think i am pretty sure but if it's wronge i apolize

3 0

3 years ago

Kisachek [45]

X-y=5

x times y= 84

-7 and -12

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3 years ago