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Hatshy [7]
3 years ago
12

It has been reported that the average credit card debt for college seniors is $3262. The student senate at a large university fe

els that their seniors have a debt much less than this, so it conducts a study of 50 randomly selected seniors and finds that the average debt is $2995, and the population standard deviation is $1100. At α = 0.05, is the student senate correct? a) State the hypotheses and identify the claim with the correct hypothesis
Mathematics
1 answer:
xeze [42]3 years ago
4 0

Answer:

Following are the solution to the given point:

Step-by-step explanation:

The formulated null hypothesis would be that the reported average do not differ significantly

H_o : \mu = \$3262\\\\H_a :  \mu <  \$3262 \ \text{(One tailed test)}

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For a school play, 739 tickets valued at $857 were sold. Some cost $1 and others cost a $1.50. How many $1 tickets were sold?
balu736 [363]

Answer:

503 $1 tickets sold.

Step-by-step explanation:

Use two equations  

Let x = number of $1 tickets sold  

Let y = number of $1.50 tickets sold  

x + y = 739  

1x + (1.5)y = 857  

First equation ==> y = 739 - x  

Plug this into the second equation  

x + (1.5)(739 - x) = 857  

x + 1108.5 - 1.5x = 857  

- 0.5x = -251.5  

x = 503  

There were 503 $1 tickets sold.  

To find the number of $1.50 tickets, just plug this value of x into either one of the equations.  

(503) + y = 739       (739 - 503 = 236)

y = 236  

There were 236 $1.50 tickets sold.

3 0
3 years ago
A hummer gets 300 miles on 20 gallons of gas how many on 50 gallons of gas
bija089 [108]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

300/2 = 150

150 x 5 = 750

It would be 750 gallons.  

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5 0
3 years ago
Juan fode his bike 2/3 mile to school,1/3 mile to the library,2/3 mile home far did he ride altogether
Viktor [21]

Answer:1 2/3

Step-by-step explanation:

2/3+1/3+2/3=5/3=1 2/3

7 0
3 years ago
Are consecutive interior angles congruent?
photoshop1234 [79]

Answer:

They are supplement to each other

8 0
3 years ago
Please answer this correctly without making mistakes
Len [333]

Answer:

The 2-yard pièce of cotton cloth for $13.26

Step-by-step explanation:

2 yards is 6 feet then it would be $2.21 per foot.

The 17 foot piece would cost $3.29 per foot.

6 0
3 years ago
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