12 S
(2 points)
The cost of a laptop increased by 25% between
2015 and 2019
In 2019, the laptop cost £1000
How much did the laptop cost in 2015?
Enter your answer
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Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.