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Semmy [17]
3 years ago
6

What is 4/5 hour = Seconds

Mathematics
2 answers:
Gala2k [10]3 years ago
6 0
2880 seconds is the answer
lianna [129]3 years ago
5 0
<span>4 / 5 hours = 2880 seconds

hope this helps!

-Payshence xoxo</span>
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The contents of a sample of 26 cans of beer showed a standard deviation of 0.06 ounce. We are interested in testing to determine
snow_tiger [21]

Answer:

The null hypothesis should not be rejected.

Step-by-step explanation:

We are given that the contents of a sample of 26 cans of beer showed a standard deviation of 0.06 ounce.

Let \sigma^{2} = <u><em>population variance</em></u>

So, Null Hypothesis, H_0 : \sigma^{2} \leq 0.003      {means that the variance of the population is significantly less than or equal to 0.003}

Alternate Hypothesis, H_A : \sigma^{2} > 0.003      {means that the variance of the population is significantly more than 0.003}

The test statistics that would be used here <u>One-sample chi-square</u> test statistics;

                           T.S. =  \frac{(n-1)\times s^{2} }{\sigma^{2} }  ~  \chi^{2}__n_-_1

where, s^{2} = sample variance = 0.06^{2} = 0.0036 ounces

            n = sample of cans of beer = 26

So, <u><em>the test statistics</em></u>  =  \frac{(26-1)\times 0.0036 }{0.003 }  ~ \chi^{2}__2_5

                                     =  30

The value of chi-square test statistics is 30.

Since in the question, we are not given with the level of significance so we assume it to be 5%. <u>Now at 5% level of significance, the ch-square table gives a critical value of 37.65 for right-tailed test.</u>

Since our test statistics is less than the critical value of chi as 30 < 37.65, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region.

Therefore, we conclude that the variance of the population is significantly less than or equal to 0.003.

8 0
2 years ago
2x-4y=0<br> -x+2y=1<br><br> trying to solve
Leni [432]

So you have your equations: 2x-4y=0 and -x+2y=1

Depending on the variable you want to take out, depends on how your equation will be set up, but, I'm going to take out X.

With the first equation you subtract 2x from 0 which leaves you with -4y=-2

Divide the sum and you get a positive 2x.

Plug 2 into X on the following equation, it should look like this. -2+2y=1. This time you're trying to find Y so, add 2 to 1 and you get 2y=3. Divide this and it should give you a decimal.

8 0
2 years ago
What is the linear equation that has slope of 5 and pass through the point (-1, -3)?
Mademuasel [1]
What you would do is that you would use the y=mx+b linear equation
m=5
x=-1
y=-3
b=?
hence, you must solve b to have the equation

-3=(5)(-1)+b
-3=-5+b
-3+5=b
2=b
therefore the equation is
y=5x+2

for standard form you just move everything to equal 0 because there is no fraction next to the x
thus

-5x+y-2=0
4 0
2 years ago
Which point in the graph is on f(x)=3x5^x
a_sh-v [17]

Answer:???

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Write an equation in slope-intercept form then Graph. <br> 3x-6y=-12
algol [13]
<h3><u>y = 1/2x + 2 is the given equation in slope-intercept form.</u></h3>

3x - 6y = -12

Currently, this is in standard form.

In order to convert this to slope-intercept form, we need to isolate y.

Add 6y to both sides.

3x = -12 + 6y

Add 12 to both sides.

3x + 12 = 6y

Divide both sides by 6.


7 0
2 years ago
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