(a) The standard error of the mean (SEM) for the U.S. babies is 0.083.
(b) An approximate 95% confidence interval for the mean sleep time for 6-month-old babies in the United States is 12.8367< μ1< 13.163.
(c) An approximate 95% for the difference in average sleep time for 6-month-old Dutch and U.S. infants is −2.203< μ1 <μ2 < −1.7969.
What is standard error and how it is measured?
A statistical concept known as the standard error uses standard deviation to assess how accurately a sample distribution represents a population. The standard error of the mean describes the statistical variation between a sample mean and the population's actual mean.
According to the given information:
In United States:
Sample size 
Mean, 
Standard deviation, 
In Netherlands:
Sample size, 
Mean, 
Standard deviation, 
(a) For the newborns in the United States, the standard error of the mean (SEM) is determined as follows:

(b) The following formula is used to determine the 95% confidence interval for the mean sleep time for babies aged 6 months in the United States:


(c) The 95% difference in the amount of time newborns in the Netherlands and the United States spend sleeping on average is computed as follows:

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Question: A ____ is a type of program that uses a grid to organize and work with data.
Answer: cells
Explanation: cells store data and other things in columns and organize them
Question: Explain how to create a Pivot table?
Answer: 1.Click a cell in the source data or table range.
2.Go to Insert > Recommended PivotTable.
3.Excel analyzes your data and presents you with several options, like in this example using the household expense data.
4.Select the PivotTable that looks best to you and press OK.
question answered by
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Answer:
A trial balance will not balance if both sides do not equal, and the reason has to be explored and corrected.
Explanation:
The debit side and the credit side must balance, meaning the value of the debits should equal the value of the credit
Answer:
You go to the option that says "snap to solve" an that's it
Answer:
Can be executed on multiple platforms.
Explanation:
A program is portable if it is not platform dependent. In other words, if the program is not tightly coupled to a particular platform, then it is said to be portable. Portable programs can run on multiple platforms without having to do much work. By platform, we essentially mean the operating system and hardware configuration of the machine's CPU.
Examples of portable programs are those written in;
i. Java
ii. C++
iii. C