Question 2 From her survey data the statistics student calcu

Question 2 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 ttest and obtained a Pvalue of 0.23. What conclusion can she draw from her data? A. Nothing. The conditions for use of a ttest were not met. She cannot trust that the Pvalue is accurate for this reason. B. 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. C. 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.

Solution

Question 2 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 ttest and obtained a Pvalue of 0.23. What conclusion can she draw from her data?

A. Nothing. The conditions for use of a ttest were not met. She cannot trust that the Pvalue is accurate for this reason.

B. 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.

C. 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.

Answer: Option B

Since calculated P=0.23 which is > 0.05 level of significance, the null hypothesis is not rejected.