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2 years ago

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Brian has started a savings account. the balance, g(x), in his account can be represented by the function g(x)= 25x + 350, where

x is the number of weeks he deposits money. suppose 25 changed to 35. what does this mean in the context of the problem?

2 answers:

Bad White [126]2 years ago

4 0

How much he deposits in his account each week.

Olegator [25]2 years ago

4 0

C. Changing 25 to 35 means the amount he deposits each week increased.

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$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

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Data given and notation

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$\sigma=6362$ represent the population standard deviation for the sample

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$\alpha$ represent the significance level for the hypothesis test.

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$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean is equal or not to 37100, the system of hypothesis would be:

Null hypothesis: $\mu =37100$

Alternative hypothesis: $\mu \neq 37100$

Since we know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

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2 years ago

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