PLS HELP WILL GIVE YALL BRAINLIEST Andrea is comparing the shifts in energy of two distant galaxies. Using a powerful telescope, she records the energy movement of each galaxy every 20 seconds (s) for six hours (hr). After sharing his data with another astronomer, they tell her that this is not an experiment. Why?

What is the best reason for jacinta to have a savings account in addition to a checking account

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?

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.