Writing expressions word prob

The significance level is $\alpha=0.01$ and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:

$z_{\alpha/2}= 2.326$

So we reject the null hypothesis is $z>2.326$

Step-by-step explanation:

For this case we define the random variable X as the number of entry-level swimmers and we are interested about the true population mean for this variable . On specific we want to test this:

Null hypothesis: $\mu \leq 15$

Alternative hypothesis: $\mu > 15$

And the statistic is given by:

$z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

The significance level is $\alpha=0.01$ and since we are conducting a right tailed test we need to find a critical value who accumulate 0.01 of the area in the right of the normal standard distribution and we got:

$z_{\alpha/2}= 2.326$

So we reject the null hypothesis is $z>2.326$

7 0

3 years ago

INTERESTING EXAMPLE #1: SIMPLE INTEREST

OleMash [197]

Answer:

3d4cf4tg6g6g5yfrr3

5

Step-by-step explanation:

rc4g5g6g5f4d4f

6 0

3 years ago

Read 2 more answers

3+5n=5(n+2)-7<br><br> Show work

Nataly [62]

Answer:

3+5n=5(n+2)-7

3+7= 5n+10-5n
0 ( As 5n and 5n cancle )

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

5 0

3 years ago