Ask question

Ask question

All categories

2 years ago

11

The following data shows rainfall in a forest, in inches, on consecutive days of a month:

1 answer:

lorasvet [3.4K]2 years ago

6 0

Answer:

??

Step-by-step explanation:

is there suppossed to be a chart

You might be interested in

Is there a difference between the 80th percentile and the top 80%?

Aleksandr [31]

<span>Actually, yes there is. Being in the 80th percentile means that you are smart than 80% of the people (i.e. out of 100 people, you would be smarter than 80 of them). However being in the top 80% means that you are a part of the 80 smartest people out that same 100. </span>

8 0

2 years ago

What is the value of 4p-2, when p=8

ohaa [14]

4p - 2 when p=8

(4 x 8) - 2
32 - 2
30

answer: 30
hope it helped :)

7 0

2 years ago

Read 2 more answers

A flower bed in the shape of a rectangular prism is 10 feet long, 1 foot wide, and 0.5 foot deep.

Lemur [1.5K]

Answer:

it is 5 feet squared

Step-by-step explanation:

multiply them all

5 0

2 years ago

Please answer these questions...

Sphinxa [80]

Answer:-18 and T=3+Y

Step-by-step explanation:

8 0

2 years ago

A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

6 0

2 years ago