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eduard
3 years ago
8

Confidence in banks: A poll conducted in 2012 asked a random sample of 1268 adults in the United States how much confidence they

had in banks and other financial institutions. A total of 144 adults said that they had a great deal of confidence. An economist claims that less than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both =α0.05 and =α0.10 levels of significance and the P-value method with the TI-84 Plus calculator.
Mathematics
1 answer:
Katena32 [7]3 years ago
3 0

Hey! How are you? My name is Maria, 19 years old. Yesterday broke up with a guy, looking for casual sex.

Write me here and I will give you my phone number - *pofsex.com*

My nickname - Lovely

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The tens digit of a two-digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 le
I am Lyosha [343]

Answer:

43

Step-by-step explanation:

Let

The unit digit = x

The tens digit = y

The number = 10x + y

The tens digit of a two-digit number is five more than the units digit.

y = x + 5

Seven times the sum of the digits of this number is 3 less than the number itself.

7(x + y) = 10x + y - 3

7x + 7y = 10x + y - 3

Find the number.

We substitute x + 5 for y

7x + 7(x + 5) = 10x + (x + 5) - 3

7x + 7x + 35 = 10x + x + 5x - 3

14x + 35 = 11x + 5x - 3

Collect like terms

35 + 3 = 11x + 5x -14x

38 = 16x - 14x

38 = 2x

x = 38/2

x = 19

Solving for y

y = x + 5

y = 19 + 5

y = 24

The number = 19 + 24

= 43

3 0
2 years ago
Read 2 more answers
What is the center of the data in the dot plot? Number of Minutes to Finish the Quiz mc010-1.jpg
Oliga [24]
The answer is 13. Or the third choice, just took the test.
6 0
3 years ago
A man ran 20 miles in 2 hours. Calculate the average time that it took the man to run each mile in minutes.
konstantin123 [22]

Answer:

he ran 3 miles in 8 mins

Step-by-step explanation:

3 0
2 years ago
Translate this sentence into an equation.
ElenaW [278]

Answer:

The product of Victor's age and 7 is 84 in equation form is 7v=84

Step-by-step explanation:

Let v be the  Victor's age.

We are supposed to Translate this sentence into an equation

The product of Victor's age and 7 is 84

Victor's age = v

Product of victor's age and 7 =7 \times v

We are given that their product is 84

So,7 \times v =84

Hence The product of Victor's age and 7 is 84 in equation form is 7v=84

7 0
3 years ago
A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number
mixas84 [53]

A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number can be repeated. You can choose from among four letters, A, B, C, and D, and two numbers, 5 and 6.

The size of the sample space is: (8, 16, 20, 24)

If a code is chosen at random, the probability that it has a letter that immediately follows an odd number is: (1/8, 1/6, 1/3, 2/5, 2/3)

If a code is chosen at random, the probability that D is in the code but is not in the first position is: (1/8, 1/6, 1/3, 2/5, 2/3)

5 0
2 years ago
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