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galben [10]
3 years ago
9

Shirley is saving money to buy a computer

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
8 0
Congrats to Shirley!! Does she have a question?
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You are an assistant director of the alumni association at a local university. You attend a presentation given by the university
NNADVOKAT [17]

Answer:

(0.102, -0.062)

Step-by-step explanation:

sample size in 2018 = n1 = 216

sample size in 2017 = n2 = 200

number of people who went for another degree in 2018 = x1 = 54

number of people who went for another degree in 2017 = x2 = 46

p1 = x1/n1 = 0.25

p2 = x2/n2 = 0.23

At 95% confidence level, z critical = 1.96

now we have to solve for the confidence interval =

<h2> p1 -p2 ± z*\sqrt{((1-p1)*p1)/n1 + ((1-p2)*p2/n2}</h2>

0.25 -0.23 ± 1.96*\sqrt{((1 - 0.25) * 0.25)/216 + ((1 - 0.23) *0.23/200}

= 0.02 ± 1.96 * 0.042

= 0.02 + 0.082 = <u>0.102</u>

= 0.02 - 0.082 = <u>-0.062</u>

<u>There is 95% confidence that there is a difference that lies between  - 0.062 and 0.102 on the proportion of students who continued their education in the years, 2017 and 2018.</u>

<u></u>

<u>There is no significant difference between the two.</u>

5 0
3 years ago
(6,5), 7x-3y=5 find the equation of the line that contains the given point and is parallel to the line. write the equation in sl
SVEN [57.7K]

Answer:

y = (7/3)x - 9

Step-by-step explanation:

1. Convert given equation to y=mx+b form --> y = (7/3)x - 5/3

2. Equation of new line --> y = (7/3)x + b

  • Note: 7/3 is the slope and for lines to be parallel they need the same slope so both equations have 7/3.

3. Plug in given values --> 5 = (7/3)(6) + b

4. Solve for b --> b = 5 - 14    b = -9

5. New line --> y = (7/3)x - 9

7 0
2 years ago
You have a gross income of $117,151 and are filing your tax return singly. You claim one exemption and can take a deduction of $
Grace [21]
Answer is $10,825 did that test too (C)
3 0
3 years ago
Read 2 more answers
I NEED HELP LIKE ASAP, IF UR CORRECT I'LL MARK U BRAINLIEST.
Reil [10]

Answer:

D

Step-by-step explanation:

The initial value is the beginning output value, or the y-value when x = 0. Therefore, since y is at 7 when x is at 0, the answer is 7.

5 0
3 years ago
5. Gil rolls a number cube 78 times. how many times can he expect to roll an odd number greater than 1?
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The fraction is 156/468 and the percentage is 33 percent
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