Mathematics, 11.03.2021 23:30, RiyaTailz3346
PLEASE HELP
The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students.
Number of practice problems completed in 30 minutes Sample 1 18 15 17 18 13 17 16 16 14 18 Mean = 16.2 Sample 2 21 20 18 20 19 19 20 21 21 20 Mean = 19.9 Sample 3 14 16 18 13 18 16 16 17 19 19 Mean = 16.6 Which statement is most accurate based on the data?
A. A prediction based on the data is reliable, because the means of samples 1 and 3 are very close together.
B. A prediction based on the data is reliable, because there are no noticeable differences among the samples.
C. A prediction based on the data is not completely reliable, because the mean of sample 2 is noticeably higher than the means of the other two samples
D. A prediction based on the data is not completely reliable, because the means of samples 1 and 3 are too close together.โ
Answers: 1
Mathematics, 22.06.2019 00:20, maggie123456751
One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?
Answers: 1
Mathematics, 22.06.2019 00:30, madelyngv97
Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.
Answers: 1
Mathematics, 22.06.2019 00:30, mercydiaz84
Measure a and b and find their sum. how are the angles related?
Answers: 3
Mathematics, 22.06.2019 01:00, kam110800
1) your friend taylor missed class today and needs some identifying solutions of systems. explain to taylor where to find the solution(s) of any system using its graph 2)taylor graphs the following in desmos and decides that f(x) = g(x) at x = 0, x = 1, & x = 3. f(x) = 2x+1g(x) = 2x2+1 provide taylor some feedback that explains which part of the answer was incorrect and why.
Answers: 1
PLEASE HELP
The table shows the number of practice problems completed in 30 minutes in three sample...
Mathematics, 27.07.2019 19:30
Mathematics, 27.07.2019 19:30
Health, 27.07.2019 19:30
Mathematics, 27.07.2019 19:30
Biology, 27.07.2019 19:30