All categories

3 years ago

Just Checking

Mathematics

1 answer:

Luda [366]3 years ago

7 0

The answer is b because 95 confidence is interval for the mean lifespan

You might be interested in

Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol ( mu μ, p, sigma σ) for

ella [17]

Answer:

Null hypothesis: $H_0:\; \mu = 48\; ^\circ\rm F$ .

Alternative hypothesis: $H_1:\; \mu \ne 48\; \rm ^\circ F$ .

Step-by-step explanation:

In hypothesis testing, the alternative hypothesis $H_1$ represents the claim that is being tested. According to the claim in this question, the true (population) mean $\mu$ is "incorrect," or not equal to (" $\ne$ ") the proposed value of $48\; \rm ^\circ F$ . Hence, the alternative hypothesis for this question would be $H_0:\; \mu \ne 48\; \rm ^\circ F$ .

On the other hand, the null hypothesis represents what happens when that claim is disproved; it should always use the equal sign (" $=$ ".) In this question, that's the same as saying that the (population) mean $\mu$ is indeed equal to $48\; \rm ^\circ F$ . Hence, the null hypothesis for this question would be: $H_1:\; \mu = 48\; \rm ^\circ F$ .

5 0

3 years ago

Can you help me <br> 3 – 7f = -25, f = ?

Mandarinka [93]

You’re answer is 4
3-7(4)=-25 so f=4

3 0

3 years ago

Read 2 more answers

Find the slope and the

IgorC [24]

Answer:

the slope is 4 and the y-intercept is -5

Step-by-step explanation:

slope s what ever is next to the x

y-intercept is like the "normal" number.

8 0

3 years ago

Which is an objects mass? A-it’s color B-it’s shape C-how much matter it has D-how much space it takes up

Nookie1986 [14]

Answer: The answer is C.

Step-by-step explanation:

5 0

3 years ago

What’s is slope and how do you find rise over run

Stolb23 [73]

A slope is a surface of which one end or side is at a higher level than another both a rising or falling surface.

And to find the rise over run use the slope to find a second point on the line. You will start with the y-intercept and rise up or down and then run left or right depending on the sign of the slope.

7 0

3 years ago