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Tomtit [17]
3 years ago
15

A random sample of 10 sales receipts for internet sales results in a mean sale amount of $66.30 with a standard deviation of $15

.75. Using this data, find the 98% confidence interval for the true mean difference between the mean amount of mail-order purchases and the mean amount of internet purchases. Assume that the population variances are not equal and that the two populations are normally distributed. Step 1 of 3 : Find the point estimate that should be used in constructing the confidence interval.
Mathematics
1 answer:
slavikrds [6]3 years ago
6 0

Answer:

ur mum s house

Step-by-step explanation:

myueudifigkgkgogkvkcv

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6)<br> R<br> E 126<br> 10x + 8<br> 13 + 5x<br> D<br> A) 1<br> C) 5<br> B) 7<br> D) 14
Gemiola [76]

Step-by-step explanation:

step 1. what is the question? maybe the question is what is the value of x in the diagram. okay.

step 2. interior angles of a triangle add up to 180°

step 3. the 3 angles inside the triangle are 10x + 8, 13 + 5x, and (180 - 126)

step 4. (10x + 8) + (13 + 5x) + 54 = 180

step 5. 15x + 21 = 126

step 6. 15x = 105

step 7. x = 7.

3 0
2 years ago
Evaluate the function.<br><br> g(x)=10x+3<br><br> g(19.6)=
Zolol [24]

Answer:

199

Step-by-step explanation:

plug in x=19.6, then

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7 0
3 years ago
Simplify the following expression into the form a + bi, where a and b are rational numbers. (4-i)(-3+7i)-7i(8+2i), please help
atroni [7]
9-25i is the answer to your question
7 0
3 years ago
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Right triangle, hypotenuse =10 short= 5 what does the long leg equal
Gekata [30.6K]
15 = 10 +5 tha is my answer to <span>Right triangle, hypotenuse =10 short= 5 what does the long leg equal

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4 0
2 years ago
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Complete the synthetic division problem below.
rewona [7]

Answer:

B

Step-by-step explanation:

- 2 | 2   2   - 2   4

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    --------------------------

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Since the remainder = 0 then (x + 2) is a factor

quotient = 2x² - 2x + 2

4 0
2 years ago
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