Container a and container b are filled with equal amount of hot water and the temperature of the water in the containers is measured with a thermometer some time later. it is observed that container a has a much lower temperature than container b. what are the possible reason(s)?
1.container a is black and container b is silver.
2.container a has a lid and container b is not covered.
3. container a is made of steel and container b is made of clay

a.1 and 2 only
b.1 and 3 only
c.2 and 3 only
d.1,2 and 3

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.

20 points + brainliest answer + my mom’s chocolate chip cookie ! subtract.

△abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.