3 years ago

Show me a step by step work and solve the problem

Mathematics

1 answer:

AveGali [126]3 years ago

6 0

What’s the question?

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How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 95% confidence that

lukranit [14]

Answer: 25 computers will be selected

Step-by-step explanation:

Where: Z -value at 95% confidence = 1.96; SD = Standard deviation = 10 minutes; N = Sample size; Margin error = 4 minutesSubstituting;4 = 1.96*10/Sqrt (N)Sqrt (N) = (1.96*10)/4 = 4.9N = 4.9^2 = 24.01 ≈ 25

5 0

3 years ago

Please help and thank you

Katena32 [7]

Answer:

Step-by-step explanation:

3 0

3 years ago

Check if 7 is a solution of the equation 4 ( Z - 3 ) = 16. step by step plz guys.

Vilka [71]

Answer:

YES

Step-by-step explanation:

4(Z-3)=16

4Z-12=16

+12 +12

4Z=28

Z=7

3 0

3 years ago

Read 2 more answers

Use the image above to identify and explain the relationship between the segments and circles A and B. In your explanation, be s

kykrilka [37]

Answer:

there both cercles

Step-by-step explanation:

4 0

4 years ago

Solve the equation w+ 2 = for c.

Zielflug [23.3K]

Isn’t it supposed to be a minus sign? For it can be like w-2, w-2 ?

6 0

4 years ago