A recent study claims that business travelers spend an average of $41 per day on meals.A sample of 16 business travelers found that they had spent an average of $45 per day with a standard deviation of $3.65.
If 0.05, what are the critical values?

Question

A recent study claims that business travelers spend an average of $41 per day on meals.A sample of 16 business travelers found that they had spent an average of $45 per day with a standard deviation of $3.65.
If  0.05, what are the critical values?

Quizplus · Accepted Answer

To find the critical values, we need to use a t-distribution table with 15 degrees of freedom (16-1=15) and a significance level of 0.05. Based on these values, the critical values are +/- 2.131. Therefore, the answer is B. Since the sample size is less than 30, we should use a t-distribution. We need to find the critical values for a two-tailed test at a significance level of 0.05 with 15 degrees of freedom (16-1=15). Using a t-table or calculator, we find the critical t-values to be ±2.131. Therefore, the answer is option B.

A Recent Study Claims That Business Travelers Spend an Average