Mathematics, 12.12.2020 16:30 gedntrxAa

Mrs. Johnson teaches American History and wanted to help her students do their best on exams. After failing to find any research on different test formats, she decided to conduct her own research. She flipped a coin for each student in her classes. If the coin landed heads up, the student took a multiple-choice test. If the coin landed tails up, the student received a fill-in-the blank exam. Afterward, Mrs. Johnson compared the averages for the two test formats. First the study above determine if it is an experimental study or an observational study and explain why.

If it is an experimental study identify

a.) variable of interest

b.) treatment

c.) control group

If it is an observational study identify

a.) variable of interest

b.) method of data collection

Your

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 22.06.2019 00:00

Need plz been trying to do it for a long time and still haven’t succeeded

Answers: 1

Answer

Mathematics, 22.06.2019 01:30

Jahdzia wears her winter coat when the temperature is colder than -4 degrees celsius. write an inequality that is true only for temperatures (t) at which jahdzia wears her winter coat.

Answers: 3

Answer

Mathematics, 22.06.2019 01:40

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean

Answers: 2

Answer

Mathematics, 22.06.2019 02:10

Plzz ! need the answer asap! 7% of 980

Answers: 2

Answer

You know the right answer?

Mrs. Johnson teaches American History and wanted to help her students do their best on exams. After...

Questions