Answer: Third option.
Please, see the detailed solution in the attache file.
Thanks
Please, see the detailed solution in the attache file.
Thanks
3200 dollars is placed in an account with an annual interest rate of 5.25%. To the nearest tenth of a year, how long will it tak
2 answers:
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Answer:
The hypothesis is:
<em>H₀</em>: .
<em>Hₐ</em>: .
Step-by-step explanation:
Let <em>X</em> = number of men who exercise regularly and <em>Y</em> = number of women who exercise regularly.
The information provided is:
Compute the sample proportion of men and women who exercise regularly as follows:
The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 150 and .
The random variable <em>Y</em> also follows a Binomial distribution with parameters <em>n</em> = 200 and .
According to the Central limit theorem, if from an unknown population large samples of sizes <em>n</em> > 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:
The standard deviation of this sampling distribution of sample proportion is:
So, the sampling distribution of the proportion of men and women who exercise regularly follows a Normal distribution.
A two proportion <em>z</em>-test cab be performed to determine whether the proportion of women is more than men who exercise regularly.
The hypothesis for this test cab be defined as:
<em>H₀</em>: The proportion of women is same as men who exercise regularly, i.e. .
<em>Hₐ</em>: The proportion of women is more than men who exercise regularly, i.e. .