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Kamila [148]
3 years ago
12

A firm employing 100 workers has an average absenteeism of 4%. on a given day what is the probability of no workers being absent

​
Mathematics
1 answer:
Serggg [28]3 years ago
3 0

Answer:

25

Step-by-step explanation:

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What is the slope between (-4,0) and (0,2)
zaharov [31]
The slope is y=1/2x + 2 or y= 0.5x+2
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3 years ago
Read 2 more answers
The difference between sixteen, and the product of seven and two
Monica [59]

Answer:

2

Step-by-step explanation:

If this product was written as an equation, it would look like this:

16 - 7 * 2

PEMDAS states that multiplication comes before addition. So, the first step in the equation is to multiply 7 and 2.

7 * 2 = 14

Now, the equation looks like:

16 - 14

All we need to do now is subtract 14 from 16.

16 - 14 = 2

So, the final answer is 2.

6 0
3 years ago
Read 2 more answers
The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales
andrezito [222]

Answer:

t=\frac{44-42}{\frac{1.9}{\sqrt{40}}}=6.657    

p_v =P(t_{(39)}>6.657)=3.17x10^{-8}  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the true mean is higher than 42 at 1% of signficance.  

Step-by-step explanation:

Data given and notation  

\bar X=44 represent the sample mean

s=1.9 represent the sample standard deviation

n=40 sample size  

\mu_o =42 represent the value that we want to test

\alpha=0.01 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is higher than 42, the system of hypothesis would be:  

Null hypothesis:\mu \leq 42  

Alternative hypothesis:\mu > 42  

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{44-42}{\frac{1.9}{\sqrt{40}}}=6.657    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=40-1=39  

Since is a one side test the p value would be:  

p_v =P(t_{(39)}>6.657)=3.17x10^{-8}  

Conclusion  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the true mean is higher than 42 at 1% of signficance.  

3 0
3 years ago
Which statement best explains the relationship between numbers divisible by 5
adoni [48]
The answer is A) A number that is divisible by 10 is also divisible by 5 because all factors of 10 are also factors of 5.

hope this helps !
4 0
3 years ago
For y = 3x - 2x2 +5x3, show how to find the value for y, when x = 3. Show your work
goblinko [34]

Y=3(3)-2x2+5x3

First multiply 3 and 3

y=9-2x2+5x3

Now multiply 2 and 2

y=9-4+5x3

now multiply 5 and 3

y=9-4+15

9-4+15=20

So Y=20


8 0
3 years ago
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