Mathematics, 24.06.2019 12:40, maciemessing2
Agroup of 60 computer science students were taught introductory computer programming class with an innovative teaching method that used a graphical interface and drag-and-drop methods of creating computer programs. at the end of the class, 43 of these students said that they felt confident in their ability to write computer programs. another group of 42 students were taught the same material using a standard method. at the end of class, 25 of these students said they felt confident. assume that each class contained a simple random sample of students. let px represent the population proportion of students taught by the innovative method who felt confident and let py represent the population proportion of students taught by the standard method who felt confident. find a 99% confidence interval for the difference px−py . round the answers to four decimal places.
Answers: 2
Mathematics, 21.06.2019 12:30, nefox8408
Suppose investors can earn a return of 2% per 6 months on a treasury note with 6 months remaining until maturity. the face value of the t-bill is $10,000. what price would you expect a 6-month maturity treasury bill to sell for? (round your answer to 2 decimal places. omit the "$" sign in your response.)
Answers: 2
Mathematics, 21.06.2019 19:00, sammizwang
Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?
Answers: 3
Mathematics, 21.06.2019 19:30, sb6998
Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?
Answers: 1
Agroup of 60 computer science students were taught introductory computer programming class with an i...
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