Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to body tissues. people with hemoglobin levels less than 12 g/dl are anemic. a public health official in jordan suspects that the mean for all children in jordan is less than 12.
what are the null and alternative hypotheses for this problem?

The Null hypothesis state that the mean hemoglobin level for all the children in Jordan is 12g/dl.

While the Alternative Hypothesis state that the mean hemoglobin level for all the children in Jordan is less than 12g/dl

Explanation:

The Null hypothesis H0: This is the hypothesis that state that there is no statistical difference between the two variables in the hypothesis. It is the hypothesis that the researcher is work to nullify.

The Alternative hypothesis H1: This is the hypothesis that states there is a statistically difference between two variables.

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy