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kiruha [24]
3 years ago
14

A field tet for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standar

d deviation were calculated. Based on the results, the exam creator claims that on the same exam, nine times out of ten, seniors will have an average score within 3% of 69%.
Is the confidence interval at 90%, 95%, or 99%? What is the margin of error? Calculate the confidence interval and explain what it means in terms of the situation.
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer: Need to clarify more about the question, I dont understand. Sorry ;//

Step-by-step explanation:

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The volume is 192.96

Step-by-step explanation:

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4 years ago
The area of the rectangle below is<br> sq. units.<br> Help me pls :(
Lisa [10]

Answer:

D

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Hey There!

To find the area of a rectangle we do length times width

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Which expression is equivalent to 1.5 raised to the fifth power divided by 0.7 raised to the fourth power, all raised to the thi
harina [27]

The expression which is equivalent to the given expression as in the task content is; 1.5 raised to the fifteenth power divided by 0.7 raised to the twelfth power.

<h3>What is the expression which is equivalent to the given expression?</h3>

According to the task content, it follows that the expression given is;

(1.5⁵/0.7⁴)³

= 1.5^(3×5) /0.7^(4×3)

= 1.5¹⁵/0.7¹².

Hence, the expression which is equivalent is; 1.5 raised to the fifteenth power divided by 0.7 raised to the twelfth power.

Read more on exponents;

brainly.com/question/847241

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4 0
1 year ago
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(3x - 1)+(x ^ 2 + 5x - 4)
RideAnS [48]

Answer: if it is simply then  the answer is 3x^3+14x^2-17x+14

         

Step-by-step explanation:

5 0
3 years ago
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KengaRu [80]

Answer:

2.8 < x -0

Step-by-step explanation:

4 0
3 years ago
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