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Anvisha [2.4K]
3 years ago
12

Based on the dotplot of the simulation results and the

Mathematics
1 answer:
Sonbull [250]3 years ago
4 0

Answer:

The conclusion to be drawn is:

The actual proportion of teenagers who do not smile  is only 8%.  It is clear that exactly 6 out of 10 teenagers will smile  in their driver's license photo.

If we continued to take more samples of 10  teenagers, the center of the distribution would shift to

Step-by-step explanation:

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Suppose you work in the quality assurance department of a chemical processing plant and it is your responsibility to ascertain w
aleksandrvk [35]

Answer:

48.668 ≤ μ ≤ 63.332

Step-by-step explanation:

Given the data:

Sample (X) : 71, 45, 54, 75, 50, 49, 63, 55, 48, 50

Number of samples (n) = 10

α = 95% = 0.05

Determine the range within which the true mean of the fluid samples from the day shift will be with a 95% confidence

True mean = μ

Confidence interval :

m ± t(α/2 ; df) * s/√n

m - t(α/2 ; df) * s/√n ≤ μ ≤ m + t(α/2 ; df) * s/√n

m = sample mean ; s = sample standard deviation ; df = degree of freedom =(n - 1) = (10 - 1) = 9

Calculating the sample mean and standard deviation using calculator to save computation time :

71, 45, 54, 75, 50, 49, 63, 55, 48, 50

m = 56 ; s = 10.25

m - t(0.05/2 ; 9) * s/√n ≤ μ ≤ m + t(0.05/2 ; df) * s/√n

From t table : t(0.05/2 ; 9) = t(0.025, 9) = 2.262

56-2.262 * (10.25/√10) ≤ μ ≤ 56+2.262 * (10.25/√10)

48.668 ≤ μ ≤ 63.332

6 0
3 years ago
Explain your answer !! <br> Have a nice day
gregori [183]
Oh gosh oh I don’t have to get My to come
7 0
2 years ago
Please help !!!!!!!!!! Will mark Brianliest answer !!!!!!!
ivanzaharov [21]
The answer is most likely (c).
3 0
2 years ago
2*10^3 in scientific notation
Natali5045456 [20]
2000, you just need to put three zeros at the end of the number.
7 0
3 years ago
How do you write 19,830 in scientific notation? _____× 10^_____
pshichka [43]

Answer:

1.983(10⁴)

Step-by-step explanation:

Since we need to have ones and decimals as proper scientific notation, we have 1.983. Since we need the value of 19830, we need to move the decimal place 4 places to the right, so our exponent is 4.

*I double checked my work this time.

8 0
3 years ago
Read 2 more answers
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