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slega [8]
3 years ago
11

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customer

s to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. The 95% confidence interval for the true average checkout time (in minutes) is
Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

100/3=33

Step-by-step explanation:

33 minuets for the true average checkout time.

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The population of a small town can be described by the equation PN equals 4000+70n. Where n is the number of years after 2005. E
ruslelena [56]

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The current population (in 2005) is 4000 because it is the constant. The slope tells us how many people are added to the population, so 70 per year. For ex. 2008 (2008- 2005 = 3=> 3 x 70 = 210 => 210 + 4000 = 4210).

8 0
3 years ago
Can someone help me with this! It would be much appreciated!!
love history [14]

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1. parallelogram

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3 0
3 years ago
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3 0
2 years ago
Read 2 more answers
9+19 - 12 + 12 + 12323 - 39
Alexxandr [17]

Answer : 12312

Step-by-step explanation : According to BODMAS, Addition (+) comes first

Hence --  9 + 19 + 12 + 12323 = 12363

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5 0
2 years ago
A car travels at an average speed of
zheka24 [161]
I think it is 264 divided by 48 = 5.5 (5 and a half hours)

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3 years ago
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