![subject](/tpl/images/cats/mat.png)
Mathematics, 08.01.2020 00:31 qais4002
Researchers gave 40 index cards to a waitress at an italian restaurant in new jersey. before delivering the bill to each customer, the waitress randomly selected a card and wrote on the bill the same message that was printed on the index card. twenty of the cards had the message, "the weather is supposed to be really good tomorrow. i hope you enjoy the day! " another 20 cards contained the message "the weather is supposed to be not so good tomorrow. i hope you enjoy the day anyway! " after the customers left, the waitress recorded the amount of the tip (percent of bill) before taxes. here are the tips for those receiving the good-weather message. give a 95% confidence interval for the difference between the mean percent tips for the two different messages. (round your answers to two decimal places.)
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:10
1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.
Answers: 2
You know the right answer?
Researchers gave 40 index cards to a waitress at an italian restaurant in new jersey. before deliver...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 28.06.2019 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 20:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 28.06.2019 20:40
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 28.06.2019 20:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.06.2019 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 28.06.2019 20:40