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lutik1710 [3]
3 years ago
13

Can you help me please​

Mathematics
2 answers:
valina [46]3 years ago
6 0

Answer:

Either C or D

Step-by-step explanation:

kotegsom [21]3 years ago
3 0

Answer:

3

Step-by-step explanation:

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A professor teaches a certain section of material using a lot of examples with sports and cars to illustrate. He is concerned th
ser-zykov [4K]

Answer:

Step-by-step explanation:

Let X represent for males and Y for females

Given that

Group   Group One     Group Two  

Mean 84.00          78.00

SD        4.00                    8.00

SEM 1.26             2.53

N            10              10  

SEM is calculated as \frac{s}{\sqrt{n} } for each group

H_0: \bar x = \bar y\\H_a: \bar x \neq \bar y

(Two tailed test at 5% significance level)

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Since p <0.05 we reject H0 and there is significant difference between the groups.

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Answer:

x≈49.457

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using trigonometry

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