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You might need: Calculator A website streams movies and television shows to its subscribers. Employees know that the average time a user spends per session on their website is 2 hours. The website changed its design, and they wanted to know if the average session length was longer than 2 hours. They randomly sampled 50 users and found that their session lengths had a mean of 2.75 hours and a standard deviation of 1.55 hours. for inference have been met. The employees want to use these sample data to conduct a t test on the mean. Assume that all conditions Identify the correct test statistic for their significance test. Choose 1 answer: 2 - 2.75 A 1.55(1 - 1.55) 50 B It= 2 -2.75 1.55 C 2.75 - 2 t= 1.55 2 - 2.75 D t = 1.55 V50 $ 2 of 14 . O . . . 0 0 0 0 0 0 0 0 Check If a basketball player says they make 75% of the shots they take. but they only more skills does that mean they're lying? Significance tests give us a formal process for using sargon gate to how plausible a claim about a population value is. We calculate P-values to see how keys 24 1 MAY O ul T A Aa 17