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cluponka [151]
3 years ago
10

Someone please answer this correctly

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

The answers would be 3 & 4 ^_^ .

Step-by-step explanation:

Hope it was helpful .

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A consumer advocacy group wants to determine whether there is a difference between the proportions of the two leading automobile
podryga [215]

Answer:

The answer is "0.3206".

Step-by-step explanation:

H_0: p_1 = p_2\\\\H_a: p_1 \neq  p_2\\\\\hat{p_1} = \frac{X_1}{N_1} = \frac{53}{400} = 0.1325\\\\\hat{p_1}= \frac{X_2}{N_2} = \frac{78}{500}= 0.156\\\\\hat{p} = \frac{(X_1 + X_2)}{(N_1 + N_2)} = \frac{(53+78)}{(400+500)} = 0.1456

Testing statistic:

z = \frac{(\hat{p_1}- \hat{p_2})}{\sqrt{(\hat{p} \times (1-\hat{p}) \times (\frac{1}{N_1} + \frac{1}{N_2}))}}

=\frac{(0.1325-0.156)}{\sqrt{(0.1456\times (1-0.1456)\times (\frac{1}{400} + \frac{1}{500}))}}\\\\ = -0.99

Calculating the P-value Approach

\text{P-value}= 0.3206

7 0
2 years ago
Help please it due at 8
umka2103 [35]
I need help my self lol XD sorryyyyyyyyy88898
8 0
2 years ago
Pllllllllllllllllllllllllllllssssssssssssssssssssssssssss
cupoosta [38]

Answer:

50.24 units^2

Step-by-step explanation:

Area of circle formula: \pir^2

r = 4, \pi = 3.14

3.14 * (4^2) = 3.14 * 16 = 50.24

5 0
3 years ago
Read 2 more answers
Pre college need helppp
Brrunno [24]

Answer:

check online for more information

7 0
2 years ago
Least common denumertor of 11/3 9/10
Alisiya [41]
30 since that’s the lowest number both 3 and 10 can fit in
8 0
2 years ago
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