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nika2105 [10]
3 years ago
12

WORTH 10 POINTS! PLZZZ ANSWEEERRRR!!111

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0
A) 2, because to find the interquartile range, you need to find the median of the upper and lower quartiles. Then, subtract the lower quartile from the upper quartile. There is the interquartile range.
Juli2301 [7.4K]3 years ago
6 0
The interquartile range is 12-6=6
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Answer: B. Do not reject H0, we cannot conclude the proportion of customer complaints is more for the old dough

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for the old and the new dough players. The population proportions of customer complaints with the old and new dough would be p1 and p2

P1 - P2 = difference in the proportion of customer complaints with the old and new dough.

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The alternative hypothesis is

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n represents number of samples

For old dough

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For new dough,

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pc = (6 + 16)/(385 + 340) = 0.03

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For a 95% confidence level, the significant level, alpha is

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