Mathematics, 01.03.2021 21:50 adantrujillo1234
Using a random sample from a population, Carys cannot decide if she wants to construct a 90 percent confidence interval for the population mean or a 95 percent confidence interval for the population mean. What is the difference between the two confidence intervals?The 90 percent confidence interval will not be as wide as the 95 percent confidence interval. The 90 percent confidence interval will be wider than the 95 percent confidence interval. The size of the sample determines which interval is wider. An unbiased sample determines which interval is wider. Which interval is wider will depend on whether a z-statistic or a t-statistic is used.
Answers: 3
Mathematics, 21.06.2019 15:00
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 20:00
Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11
Answers: 2
Mathematics, 21.06.2019 20:00
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: 2
Mathematics, 21.06.2019 20:30
Is the point (0, 8) on the x-axis or y-axis? how do you know?
Answers: 2
Using a random sample from a population, Carys cannot decide if she wants to construct a 90 percent...
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