Graph the functions to find The solution. f(x)=x^2

You're running a 10-mile race. After you run for a

Semenov [28]

Answer:

7 miles

Step-by-step explanation:

You are in a 10-mile race. You see a sign telling you that you have three miles left to go. So, subtract 3 miles from 10 miles to find out how many miles you have already ran.

10miles total-3 miles left to go=7 miles already completed

7 0

4 years ago

A potato chip manufacturer has found that in the past the standard deviation of bag weight has been 0.2 ounce. They want to test

Brut [27]

Answer:

Null Hypothesis: $\sigma=0.2$

Alternative hypothesis: $\sigma \neq 0.2$ (Changes on the deviation)

Step-by-step explanation:

s represent the sample standard deviation

$\sigma$ represent the population standard deviation (variable of interest)

$\sigma_o =0.2$ represent the value that we want to test

n represent the sample size

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Based on this the system of hypothesis should be:

Null Hypothesis: $\sigma=0.2$

Alternative hypothesis: $\sigma \neq 0.2$ (Changes on the deviation)

In order to test these system of hypothesis we need to select a significance level $\alpha$ , then we need to calculate an statistic given by this formula.