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Mnenie [13.5K]
3 years ago
12

Need help on this first column

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

Answer: No idea

Step-by-step explanation:

..

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In a random sample of 5 residents of the state of Texas, the mean waste recycled per person per day was 1.9 pounds with a standa
sammy [17]
<h2>Answer with explanation:</h2><h2 />

The confidence interval for population mean is given by :-

\overline{x} \pm\ t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 5, since n<30 , so the test we use here is t-test.

Sample mean : \overline{x}=1.9\text{ pounds}

Standard deviation: \sigma=0.89\text{ pounds}

Significance level : 1-\alpha:1-0.99=0.01

By using the standard normal distribution table , the critical value corresponds to the given significance level will be :-

t_{n-1,\alpha/2}=t_{5-1,0.01/2}=t_{4,0.005}=4.604

Now, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas will be :-

1.9\pm\ (4.604)\dfrac{0.89}{\sqrt{5}}\\\\\approx1.9\pm1.832\\\\=(1.9-1.832,1.9+1.832)=(0.068,\ 3.732)

Hence, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas  = (0.068, 3.732)

5 0
3 years ago
Write the number shown in standard form and expanded notation
zhenek [66]

Given:

Standard form and expanded notation

Find-:

The number shown in standard form and expanded notation

Explanation-:

The standard form is

Standard form = The standard form is

abcde=a.bcde\times10^4

For example, is

5326.6=5.3266\times10^3

The expanded form is

The expanded = Expanded form is a way to write a number by adding the value of its digits. We can use a place value chart to determine the value of a number's digits.

For example

7229=7000+200+20+9

3 0
1 year ago
Is 1 4/5 greater than or less than 9 and why
const2013 [10]
1 4/5 is less than 9 because if have to count forward to get the answer for a greater than or less than question it is less than. If you have to count backward it is greater than (left to right). Hope I helped 
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3 years ago
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Andrej [43]
The sale price is $255
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Can someone please help me with this asap I'm being timed ​
NikAS [45]

Answer:

A, C, and D.

Step-by-step explanation:

The other does not go through the origin, therefore it is not proportional.

7 0
3 years ago
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