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Nadusha1986 [10]
2 years ago
11

The sales manager gathered information on the numbers of sales calls made and the number of copiers sold for a random sample of

sales representative. Is there a positive correlation between calls made and copiers? Test at the 0.05 level of significance. Determine the 90% prediction interval for 60 number of calls made. *
Calls,X Sold. Y
20 40
20 50
40 60
50 90
40 80
20 40
40 60
30 60
Mathematics
1 answer:
N76 [4]2 years ago
6 0

Answer:

b

Step-by-step explanation:

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Luke is x years old. Kate is half of Luke's age. Adam is 6 years younger than Kate. Adam is 4 years old. How old is Luke?
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A population has a mean of 300 and a standard deviation of 40. Suppose a sample of size 100 is selected and is used to estimate
bazaltina [42]

Answer:

a: 0.9544 9 within 8 units)

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Step-by-step explanation:

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Next we want the probability of the sample mean to be within 11 units of the population mean, so we want the values from 289 to 311.  We want to find

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5 0
3 years ago
Factor the expression completely. -8x - 16
Akimi4 [234]

Answer:

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4 0
3 years ago
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Answer : There are 13 fish food bags are could fit in a box of size 3\frac{1}{4} ft.

Explanation :

Length of box = 3\frac{3}{4} ft

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Number of fish food boxes could fit in a box = \frac{\text{length of a box}}{\text{length of fish food box}}

Number of fish food boxes could fit in a box  =\frac{3\frac{1}{4}}{\frac{1}{4}}\\=\frac{\frac{13}{4}}{\frac{1}{4}}\\= \frac{13}{1}

Hence, there are 13 fish food bags are could fit in a box of size 3\frac{1}{4} ft.

3 0
3 years ago
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