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White raven [17]
4 years ago
9

Joe's hot dog stand is one open for lunch.of today's sale, 26% came from selling plain hit dogs. Since the hot dog stand made 45

.50 from selling plain hot dogs, it made how much in total sale for the day?
Mathematics
1 answer:
Free_Kalibri [48]4 years ago
3 0
Find the 100% of that. Since plain hot dog is just 26% of total. So $45.50 multiplied by 100/26. Which is $175
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While her husband spent 2½ hours picking out new speakers, a statistician decided to determine whether the percent of men who en
AVprozaik [17]

Answer:

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

z=\frac{0.34848-0.34782}{\sqrt{0.34831(1-0.34831)(\frac{1}{66}+\frac{1}{23})}}=0.0057  

p_v =P(Z>0.0057)=0.4977  

The p value is a very high value and using the significance level \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the percent of men who enjoy shopping for electronic equipment is NOT significantly higher than the percent of women who enjoy shopping for electronic equipment.  

Step-by-step explanation:

1) Data given and notation  

X_{M}=23 represent the number of men that said they enjoyed the activity of Saturday afternoon shopping

X_{W}=8 represent the number of women that said they enjoyed the activity of Saturday afternoon shopping

n_{M}=66 sample of male selected

n_{W}=23 sample of demale selected

p_{M}=\frac{23}{66}=0.34848 represent the proportion of men that said they enjoyed the activity of Saturday afternoon shopping

p_{W}=\frac{8}{23}=0.34782 represent the proportion of women with red/green color blindness  

z would represent the statistic (variable of interest)  

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

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment , the system of hypothesis would be:  

Null hypothesis:p_{M} \leq p_{W}  

Alternative hypothesis:p_{M} > p_{W}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

Where \hat p=\frac{X_{M}+X_{W}}{n_{M}+n_{W}}=\frac{23+8}{66+23}=0.34831

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.34848-0.34782}{\sqrt{0.34831(1-0.34831)(\frac{1}{66}+\frac{1}{23})}}=0.0057  

4) Statistical decision

Using the significance level provided \alpha=0.05, the next step would be calculate the p value for this test.  

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

p_v =P(Z>0.0057)=0.4977  

So the p value is a very high value and using the significance level \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the percent of men who enjoy shopping for electronic equipment is NOT significantly higher than the percent of women who enjoy shopping for electronic equipment.  

4 0
4 years ago
Can someone pled help me
Lapatulllka [165]

Answer:

Step-by-step explanation:Sorry but I don't think any of those answers are correct its impossible to solve that

6 0
3 years ago
PLEASE HELP QUICKLY Evaluate 12 + 4 x 3 - 15
Ivanshal [37]

Answer:

15

Step-by-step explanation:

4×3=12 15-12=3 3+12=15

6 0
3 years ago
Suppose the distributor charges the artist a $40.00 cost for distribution, and the streaming services pay $4.00 per unit. (Note:
Nookie1986 [14]

The question is an illustration of a linear equation

  • The y-intercept is 40
  • The slope is 4
  • The equation of the line is y =4x + 40
  • You pay the distributor after 1 charge
  • You pay $750,000 for 177.5 streams

<h3>(a) How to calculate the y-intercept</h3>

From the question, we have the following parameters:

  • Cost of distribution: $40.00
  • Rate = $4.00 per unit

The cost of distribution represents the y-intercept, while the rate represents the slope.

Hence, the y-intercept is 40

<h3>(b) How to calculate the slope</h3>

In (a), we have:

The rate represents the slope.

Hence, the slope is 4

<h3>(c) The equation of the line</h3>

A linear equation is represented as:

y = mx + b

Where:

  • m represents the slope
  • b represents the y-intercept

Using the results in (a) and (b), the linear equation is:

y =4x + 40

See attachment for the graph of the equation

<h3>(c) The number of streams you pay the distributor</h3>

From the graph, we can see that the line touches the x-axis at the negative x-axis.

This means that, you pay the distributor after 1 charge

<h3>(d) The number of streams to pay $750,000</h3>

This means that: y = 750.

So, we have:

y =4x + 40

750 = 4x + 40

Subtract 40 from both sides

4x = 710

Divide both sides by 4

x = 177.5

Hence, you pay $750,000 for 177.5 streams

Read more about linear equations at:

brainly.com/question/14323743

7 0
2 years ago
Evaluate 5! + 2!. <br><br> 60<br> 122<br> 5040
grandymaker [24]
5! = 5 *4*3*2*1 = 120

2! = 2*1 = 2

120 +2 = 122
7 0
4 years ago
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