University of Virginia STAT STAT 1120 Hi, can someone please help me with these questions, and provide an explanation? Thank you! 1) About 76% of young adult Internet users (aged 18 to

University of Virginia STAT STAT 1120 Hi, can someone please help me with these questions, and provide an explanation? Thank you! 1) About 76% of young adult Internet users (aged 18 to

Hi, can someone please help me with these questions, and provide an explanation? Thank you!

1) About 76% of young adult Internet users (aged 18 to 29) use social network sites. Suppose that a sample survey contacts a SRS of 1600 young adult Internet users and calculates the proportion p̂ in this sample who use social network sites. (Enter your means to two decimal places and round your standard deviations to four decimal places.)

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University of Virginia STAT STAT 1120 Hi, can someone please help me with these questions, and provide an explanation? Thank you! 1) About 76% of young adult Internet users (aged 18 to
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1.1) What is the approximate distribution of p̂?

  • Mean=?
  • Standard Deviation=?

1.2) If the sample size were 6400 rather than 1600, what would be the approximate distribution of p̂?

  • Mean=?
  • Standard Deviation=?

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