Confused on how to set the problem up.

Mathematics

1 answer:

MArishka [77]3 years ago

3 0

Answer: idk but here's some advice re read the question if it says many your gonna add if it say how much then your subtracting and if it says something else then your multiplying or dividing so you have to do 5x133=665 so then that should be your answer

Step-by-step explanation:

Well imma have to keep spamming my question bc no one is even answering it :c

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A random sample of 150 men found that 88 of the men excercise regularly, while a random sample 200 women found that 130 of the w

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Answer:

The hypothesis is:

H₀: $p_{X}-p_{Y}=0$ .

Hₐ: $p_{X}-p_{Y}$ .

Step-by-step explanation:

Let X = number of men who exercise regularly and Y = number of women who exercise regularly.

The information provided is:

$n_{X}=150\\X=88\\n_{Y}=200\\Y=130$

Compute the sample proportion of men and women who exercise regularly as follows:

$\hat p_{X}=\frac{X}{n_{X}}=\frac{88}{150}=0.587$

$\hat p_{Y}=\frac{Y}{n_{Y}}=\frac{130}{200}=0.65$

The random variable X follows a Binomial distribution with parameters n = 150 and $\hat p_{X}=0.587$ .

The random variable Y also follows a Binomial distribution with parameters n = 200 and $\hat p_{Y}=0.65$ .

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

$\hat p=p$