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Calculates that the mean number of facebook friends

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From her survey data, the statistics student calculates that the mean number of Facebook friends for her sample is 138.7 with a standard deviation of 79.3. She analyzed her data using a t-test and obtained a P-value of 0.23.

What conclusion can she draw from her data?

  • Nothing. The conditions for use of a t-test were not met. She cannot trust that the P-value is accurate for this reason.
  • Even though 138.7 is larger than 130, it is not significantly larger than 130. In other words, the data do not provide enough evidence to conclude that the mean number of Facebook friends of all CCC college students is higher than 130.
  • 138.7 is significantly larger than 130. In other words the data provide provide enough evidence to conclude that the mean number of Facebook friends of all CCC college students is higher than 130.

Reference no: EM132474220

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