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Artyom0805 [142]
2 years ago
12

A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teache

rs who were assigned all curricular resources for use in their classes. On average, when surveyed regarding job satisfaction, teachers give a score of 3.3 out of 5 with a standard deviation of 0.6. When the authors of the study interviewed 40 teachers who supplemented with their own materials, they found 3.5 to be the mean. The authors wanted to know if the group of teachers that could choose supplementary curriculum had a higher level of job satisfaction. They used a significance level of 1%. Which of the following statements is valid based on the results of the test
a. The data shows that the authors make a stong proint with the date
b. The data shows that the authors cannot make a determination either way with this data.
c. 70% teachers are not satisfied with their jobs
d. None of the above
Mathematics
1 answer:
ludmilkaskok [199]2 years ago
8 0
The answer is b. the data shows that the authors connot make a determination either way with this data.
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Math question down below
Bas_tet [7]
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1 year ago
5. Find the value of y.<br> m21 = 2y + 8<br> 46<br> 41<br> 47<br> 36
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Answer:

idrk tbh

Step-by-step explanation:

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1 year ago
A stores having a sale on jelly beans and trail mix for 8 pounds of jelly beans and 4 pounds of trail mix the total cost is $25.
Nataly_w [17]

Answer:each pound of jelly beans cost $2.5

Each pound of trailmix cost $1.25

Step-by-step explanation:

Let x represent the cost of one pound of jelly bean.

Let y represent the cost of one pound of trail mix.

A stores having a sale on jelly beans and trail mix for 8 pounds of jelly beans and 4 pounds of trail mix the total cost is $25. This means that

8x + 4y = 25 - - - - - - -1

For 3 pounds of jelly beans and 2 pounds of trailmix the total cost is $10. This means that

3x + 2y = 10 - - - - - - - - 2

Multiplying equation 1 by 3 and equation 2 by 8, it becomes

24x + 12y = 75

24x + 16y = 80

Subtracting,

- 4y = -5

y = - 5/ -4 = 1.25

Substituting y = 1.25 into equation 2, it becomes

3x + 2×1.25 = 10

3x + 2.5 = 10

3x = 10 - 2.5 = 7.5

x = 7.5/3 = 2.5

3 0
2 years ago
2. According to the law of supply, if the price of a good or service increases:
katrin2010 [14]

Answer:

There is a negative relationship between the price of a good or service and the quantity producers will supply.

Step-by-step explanation:

3 0
1 year ago
Nth term of 6 12 20 30 42 56 72​
Goshia [24]

Answer:

72, 90, 110, 132, 156

Step-by-step explanation:

The pattern goes, (56+16), (72+18), (90+20), (110+22), (132+24), (156+26), etc.

With the beginning pattern of +6, add +2 to each +6 for the following numbers.

8 0
1 year ago
Read 2 more answers
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