QUthl IUN I The cost of a daily newspaper varies 1from city to city. However, the variation among prices remains steady with a standard deviation of 20. A study was done to test the claim that the mean cost of a daily newspaper is $1.60. Twelve costs yield a mean cost of 95 with a standard deviation of 18. What type of distribution is this? 0 A. Student t distribution 0 B. Normal single population mean 0 C. Normal for a single proportion QUESTION 3 The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard deviation of 20. A studyr was done to test the claim that the mean cost of a daily newspaper is $1.00. Twelve costs yield a mean cost of 95 with a standard deviation of 18. What type tail test is this? 0 A. two tailed O B. left tailed O C. right tailed