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m_a_m_a [10]
2 years ago
8

Under what circumstances will the chi-square test for goodness of fit produce a large value for chi-square? Question options: a.

when the sample proportions are much different than the hypothesized population proportions b.when the sample mean is close to the population mean
Mathematics
1 answer:
Whitepunk [10]2 years ago
4 0

Answer:

a.when the sample proportions are much different than the hypothesized population proportions

Step-by-step explanation:

A chi-square test for goodness of fit is used to check the sample data were distributed according to claim or not.

If the chi-square test produces a large value of chi-square statistic then there is not a good fit between sample data and the null hypothesis. So, the sample proportions are much different than the hypothesized population proportions. Hence,Option (a) is correct.

If the goodness of fit produces a large value for chi-square then the sample means must not be close to the population mean. So, option (b) is incorrect.

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The Wright Flyer was the first successful powered aircraft. A model was made to display in a museum with the length of 35 cm and
astra-53 [7]

<span>To link the displayed Wright flyer in the museum with the actual plane, we have to calculate for the relation of the corresponding parameter. In this problem, for both the display and the actual plane, we are given with the length. Computing for the ratio gives us,</span>

<span>
    ratio = length of the model / length of the actual plane

Length of the model = 35 cm</span>

<span>
We need to calculate for the length of the model in ft.</span>

<span>
length of the model = (35 cm)(1 in/2.54 cm)(1 ft/12 in)
length of the model = 1.148 ft

</span>

<span>
</span>

<span>Going back to the calculation for the ratio,
ratio = (1.148 ft)/21 ft
ratio = 0.055

Therefore, the measurements used in the model is equal to 0.055 times the actual dimensions.

Error may occur because of the number of significant figures measured for rounding up or down of the answers after each calculation. </span>

8 0
2 years ago
A study determined that the average student who graduates takes 58 months to graduate from college with a bachelor’s degree and
Alona [7]
B is the answer a b c and d is the answer
7 0
2 years ago
In expanded notation, the hexadecimal 74AF16 is (7*4096) + (4*256) + (A*16) + (F*1). When converting from hexadecimal to decimal
Feliz [49]

Answer:

F is assigned the value of 15

74AF_{16} = 29871_{10}

Step-by-step explanation:

Hexadecimal number system is base 16 and it contain the following numbers:

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F

A has a value of 10

B has a value of 11

C has a value of 12

D has a value of 13

E has a value of 14

F has a value of 15

By completing the expanded notation:

(7*4096) + (4*256) + (A * 16) + (F *1)\\= (7*4096) + (4*256) + (10 * 16) + (15 *1)\\= 28672 + 1024 + 160 + 15\\= 29871

6 0
2 years ago
On some days,Melvin commutes 3.5 hours per day to the city for business meetings.Last week he commuted for a total of 14 hours.H
DanielleElmas [232]
Formula:

Total hours ÷ hour per day

14 ÷ 3.5 = 4.

The answer is 4.

He commuted 4 days for the city.


3 0
2 years ago
Find the length of the longest line segment that can be drawn on a rectangular board 3.07m by 2.24m
nikklg [1K]
For rectangle
l=3.07m
b=2.24m
so longest side that can be drawn is diagonal of rectangular board
=squareroot l^2+b^2
=squareroot3.07^2+2.24^2
=squareroot9.4249+5.0176
=squareroot14.4425
=3.80
So longest line that can be drawn in rectangular board is 3.80m
3 0
2 years ago
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