A resort had 380 rooms with space for 6 people. Estimate the greatest number of people who could be in these rooms at the same t
1 answer:
Answer: 2400 people.
Step-by-step explanation:
1. To solve this problem you must round 380 to its greatest place.
2. As you can see, 380 is closer to 400, therefore, you can round it up to 400.
3. Keeping this on mind, you must multiply 400 rooms by 6 people, as following:
4. Therefore, as you can see, the result indicates that the greatest number of people who could be in these rooms at the same time is 2400.
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By assuming the standard deviation of population 2.2 the confidence interval is 8.67 toys,8.94 toys.
Given sample size of 1492 children,99% confidence interval , sample mean of 8.8, population standard deviation=2.2.
This type of problems can be solved through z test and in z test we have to first find the z score and then p value from normal distribution table.
First we have to find the value of α which can be calculated as under:
α=(1-0.99)/2=0.005
p=1-0.005=0.995
corresponding z value will be 2.575 for p=0.995 .
Margin of error=z*x/d
where x is mean and d is standard deviation.
M=2.575*2.2/
=0.14
So the lower value will be x-M
=8.8-0.14
=8.66
=8.67 ( after rounding)
The upper value will be x+M
=8.8+0.14
=8.94
Hence the confidence interval will be 8.67 toys and 8.94 toys.
Learn more about z test at brainly.com/question/14453510
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