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Margarita [4]
3 years ago
5

Plz help me answer this

Mathematics
1 answer:
Helga [31]3 years ago
4 0
I think it is A  good luck
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there are 60 boys and 72 girls in a school. the principle wants to divide the students into gender-specific groups ( all boys or
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Hello there,
You want to split them into gender specific groups.
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Find the HCF(highest common factor) of 60 & 72 
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7 0
3 years ago
Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed
Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}} , where \overline{x} is the sample mean , \sigma is the population standard deviation , n is the sample size and z_c is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : \overline{x}=65 hours

Population standard deviation : \sigma=18 hours

z-value for 93% confidence interval: z_c=1.8119  [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0
3 years ago
SOMEONE PLEASE ACTUALLY HELP ME!!!!
ser-zykov [4K]

Answer:

with what do u need help with?

4 0
3 years ago
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The mean annual salary for environmental compliance specialists is about $66,000.  A random sample of 35 specialists is selected
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