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Fudgin [204]
3 years ago
14

A two year community college has decided to implement a new approach to teaching probability. Full-time and adjunct faculty were

surveyed to determine whether they preferred the traditional lecture approach or a computer approach to teaching probability. The results are listed below. Use hypothesis testing to test the independence of opinion between the two groups.
Prefer Lecture Prefer Computer No Preference
Full-time 8 13 6
Adjunct 11 22 10

Required:
a. Calculate the expected value of an adjunct professor who prefers to lecture.
b. What is the expected value of an adjunct professor who prefers computer instruction
Mathematics
1 answer:
Gemiola [76]3 years ago
3 0

Answer:

knl k knl

Step-by-step explanation:

ljh kjnjknojn[ojnk  pj

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The ratio of boys to girls in a class is 2:3. there are twelve boys in the class. how many girls are there
gogolik [260]
The answer is 18

Solution: 2:3 2x6=12
3x6=18
Hope this help
4 0
3 years ago
Mary pays income tax according to the graduated schedule shown below. A 3-column table with 6 rows. Column 1 is labeled If taxab
Katarina [22]

Answer:

$13564

Step-by-step explanation:

\left|\begin{array}{c|c|c}$If taxable&& \\$income&&\\$ is over&$but not over&$the tax is\\---&---&---\\$0 &7,825 &$10\%  of the amount over 0\\7,825 &31,850 &$782.50 plus $15\% $ of the amount over 7,825$ \end{array}\right|\left|\begin{array}{c|c|c}31,850 &77,100 &$4,386.25 plus 25\%  of the amount over 31,850 \\77,100 &160,850 &$15,698.75 plus 28\%  of the amount over 77,100\end{array}\right|

\left|\begin{array}{c|c|c}160,850 &349,700 &$39,148.75 plus 33\%  of the amount over 160,850 \\349,700 &$no limit&$101,469.25 plus 35\%  of the amount over 349,700\end{array}\right|

Mary’s taxable income= $68,562

From the table, If taxable income is over $31,850 but not over $77,100

The tax = $4386.25 + 25% of the amount over 31,850

Amount over $31,850=$68,562-$31,850

=$36,712

Therefore:

Mary's tax = $4386.25 + (25% of $36,712)

=$4386.25 +9,178

=$13564.25

=$13564 (to the nearest dollar)

5 0
3 years ago
Read 2 more answers
What is the square root of 529
Sunny_sXe [5.5K]

Answer:

23

Step-by-step explanation:

Because 23•23=529 so the square root of 529 is 23.

4 0
3 years ago
Which expression equals 93102
Karo-lina-s [1.5K]

Answer:

you got this

Step-by-step explanation:

goodluck

4 0
2 years ago
The seventh grade class at a Christian school had 24 students enrolled at the beginning of the school year. At the end of the sc
Darya [45]

Answer:

12.5%

Step-by-step explanation:

27-24=3

3/24=1/8

1/8=0.125

0.125 in percent is 12.5%

7 0
2 years ago
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