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Arada [10]
3 years ago
14

Is 9.401 greater or less than 9.410

Mathematics
2 answers:
AysviL [449]3 years ago
7 0

9.401 is less than 9.410

harkovskaia [24]3 years ago
7 0
9.401 < 9.410
Is less than 9.410 because
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The manager of a video store has compiled the following table, which gives the probabilities that a customer will buy 0, 1, 2, 3
hram777 [196]

Answer:

0.91 DVDs

Step-by-step explanation:

The expected number of DVDs is the sum of products of the number of DVDs and their probability:

  E(n) = 0·0.42 + 1·0.36 + 2·0.14 + 3·0.05 + 4·0.03

  = 0 + 0.36 + 0.28 + 0.15 + 0.12

  = 0.91

A given customer can be expected to buy 0.91 DVDs.

5 0
3 years ago
Using traditional methods, it takes 94 hours to receive a basic flying license. A new license training method using Computer Aid
nikdorinn [45]

Answer:

z=\frac{95-94}{\frac{5}{\sqrt{210}}}=2.898    

p_v =2*P(Z>2.898)=0.0038    

If we compare the p value and the significance level given \alpha=0.05 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 different from 94 at 5% of signficance.  

Step-by-step explanation:

Data given and notation    

\bar X=95 represent the sample mean    

\sigma=5 represent the population standard deviation    

n=210 sample size    

\mu_o =94 represent the value that we want to test    

\alpha=0.05 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 different from 94, the system of hypothesis are :    

Null hypothesis:\mu = 94    

Alternative hypothesis:\mu \neq 94    

Since we know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:    

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)    

z-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:    

z=\frac{95-94}{\frac{5}{\sqrt{210}}}=2.898    

P-value    

Since is a two-sided test the p value would be:    

p_v =2*P(Z>2.898)=0.0038    

Conclusion    

If we compare the p value and the significance level given \alpha=0.05 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 different from 94 at 5% of signficance.  

8 0
3 years ago
Math Help Help Fast Alot of points
MrMuchimi

Here mark the angles

  • m<FHG=75
  • m<FGH=55
  • m<GHI=59°
  • m<GIH=63°

By using angle sum property

  • m<IGH=180-122=58

So

  • m<FGH < m<IGH <m<GHI <m<GIH <m <FHG

So

  • FH<IH<GI<GH<FG
8 0
2 years ago
Read 2 more answers
Which expressions are equivalent to 35 + 30s - 45t?
stiv31 [10]
We have that
<span>35 + 30s - 45t

case A) 
</span>7⋅(5+30s−45t)---> 35+210s-315t-----> is not <span>equivalent 

case B)
</span>5(7+6s−9t)----> 35+30s-45t------> is equivalent to 35 + 30s - 45t

case C)
(−35−30s+45t)×(−1)----> 35+30s-45t---> is equivalent to 35 + 30s - 45t

case D)
 10×(3.5+3s−4.5)----> 35+30s-45---->  is not  equivalent 

case E) 
( 35/2 - 15s + 45/2t) ⋅ (-2)--->-35+30s-45t---> is not  equivalent 

the answer is
<span>B. 5(7+6s−9t)
C. (−35−30s+45t)×(−1)</span>
3 0
3 years ago
Read 2 more answers
Well, Penny, it certainly was an unusual choice to appear
Dvinal [7]

Answer:

Pretty sure it is D.

Step-by-step explanation:

How I think the narrator was thinking: I mean, yes, its a wedding on Saint Patricks, but you still need to dress appropriatley (its a wedding)

5 0
3 years ago
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