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umka2103 [35]
3 years ago
15

In a study of annual salaries of employees, random samples were selected from two companies to test if there is a difference in

average salaries. For Company "X", the sample was size 65, the sample mean was $47,000 and the population standard deviation is assumed to be $11,000. For Company "Y", the sample size was 55, the sample mean was $44,000 and the population standard deviation is assumed to be $10,000. Test for a difference in average salaries at a 5% level of significance. What is your conclusion?
Mathematics
1 answer:
vichka [17]3 years ago
7 0

Answer:

Step-by-step explanation:

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What digits makes 3,71? Divisible by 3 (connections academy unit test)
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Since we know that a number is divisible by 3 if the sum of all digits is divisible by 3.

Let us check which digits will make 371? divisible by 3.

3+7+1+0=11

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Now let us check other digits as well.

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3+7+1+4=15

15 is also divisible by 3.

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18 is divisible by 3 as well.

Therefore, 1, 4 and 7 in tenth place will make our number divisible by 3 and our numbers will be 3711, 3714 and 3717.

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Any help on this???????????
Ivahew [28]

Answer:

x = 121°

Step-by-step explanation:

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