According to a study, the average number of hours of TV viewing per household per week in the Philippines is 50.4 hours and the standard deviation is 11.8 hours. If a random sample of 42 households is taken, what is the probability that-   a.) the sample average is more than 52 hours?   b.) the sample average is less than 47.5 hours?   c.) the sample average is less than 40 hours?

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Q: 9) For a certain type of computer, the length of time between charges of the battery is normally…

A:

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: Given that, Mean = 120 Standard deviation = 20

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.