Mathematics, 15.04.2020 04:49 alessandrotabares
Suppose that a restaurant launched a new advertising campaign in conjunction with a new menu. After one month they take a random sample of 250 bills (tables) and find an average bill of 73.4. In that sample they also find the standard deviation is 38.6. Conduct a hypothesis test to determine whether the new campaign and menu have increased the average bill above the previous average of 71.6. Hint, the null hypothesis is that mu<=71.6 and we assume that the standard deviation is unknown so we use the estimate of 38.6 from the sample. What is the test statistic? Answer to three decimal places. (Remember that when a value for alpha is not explicitly stated in this class then you can assume it is .05; use alpha=.05 in this problem.)
Answers: 3
Mathematics, 21.06.2019 14:20
Iam stuck on one problem. my mind is in absoloute vacation mode. i literallty just need to finish this to be done will give brainliest and all my points if i have to! 1- point free throw and 2- point feild goal. he made 35 shots, and scored 62 points how many of each shot did he make in 1 minute? (i already did the math. he made 8 1-point free throws and 27 2-point feild goals.) 1. write two equations for the problem. (i had a major brain fart.)
Answers: 1
Mathematics, 21.06.2019 18:00
Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.
Answers: 3
Mathematics, 21.06.2019 19:30
Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to โ(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from โ6. the value of y must be positive since the variable is inside absolute value signs.
Answers: 1
Mathematics, 21.06.2019 20:20
Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.
Answers: 1
Suppose that a restaurant launched a new advertising campaign in conjunction with a new menu. After...
History, 09.12.2020 23:20
Social Studies, 09.12.2020 23:20
English, 09.12.2020 23:20
History, 09.12.2020 23:20
English, 09.12.2020 23:20
Social Studies, 09.12.2020 23:20
Advanced Placement (AP), 09.12.2020 23:20
Mathematics, 09.12.2020 23:20
Biology, 09.12.2020 23:20
Mathematics, 09.12.2020 23:20
Mathematics, 09.12.2020 23:20
History, 09.12.2020 23:20
Mathematics, 09.12.2020 23:20