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PSYCHO15rus [73]
2 years ago
12

Elapsed time is 3 hours & 56 minutes. End time is 1:40 p.m. What is the start time?

Mathematics
2 answers:
AVprozaik [17]2 years ago
8 0
3 hours and 56 minutes before 1:40 pm is 9:44 am
levacccp [35]2 years ago
4 0
1:40 - 1 hour is 12:40. (2 hours and 56 min left)
12:40 - 40 min is 12:00 (2 hours and 16 min left)
12:00 - 2 hours is 10:00 (16 min left)
10:00 - 10 min is 9:50 (6 min left)
9:50 - 6 min is 9:44.

The start time is 9:44 A.M
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Answer:

The decision rule is  

Fail to reject the null hypothesis

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There is no sufficient evidence to show that the average room price is significantly different from $108.50

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 64

    The average price is  \= x  = \$ 112

    The population standard deviation is  \sigma  = \$ 16

     The level of significance is  \alpha  = 0.05

    The population mean is  \mu = \$ 108.5

The null hypothesis is  H_o :  \mu = 108.50

The alternative hypothesis is  H_a  :  \mu \ne  108.50

Generally the test statistics is mathematically represented as

       z = \frac{\= x - \mu }{ \frac{ \sigma}{\sqrt{n} } }

=>    z = \frac{112 - 108.50 }{ \frac{ 16}{\sqrt{64} } }  

=>    z = 1.75

From the z table  the area under the normal curve to the left corresponding to  1.75  is  

       P( Z >  1.75) = 0.040059

Generally  p-value is mathematically represented as

        p-value = 2 * P( Z >  1.75)

=>     p-value = 2 * 0.040059

=>     p-value = 0.08012

From the values obtained we see that  p-value  > \alpha hence

The decision rule is  

Fail to reject the null hypothesis

The conclusion is  

There is no sufficient evidence to show that the average room price is significantly different from $108.50

 

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Answer:

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Then

156000-39000

=$117,000

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