Composites are materials that are made by embedding a fiber,
such as glass or carbon, inside a matrix, such as a metal or a
ceramic. Composites are used in engineering
structures, and their degradation when subjected to wheather
conditions is an important issue.. In an experiment to investigate
the effect of the moisture on a certain kind of
composite, the weight gains of a collection of n=25 samples of
composite subjected to water diffusion were obtained. The sample
mean is x=0.45% with a sample std. of
S=0.08%. Can we 95% confident from the results of this experiment
that the average weight gain for composites of this kind is smaller
than 0.46% ?
Composites are materials that are made by embedding a fiber, such as glass or carbon, inside...
Prob-4 Composites are materials that are made by embedding a fiber, such as glass or carbon, inside a matrix, such as a metal or a ceramic. Composites are used in engineering structures, and their degradation when subjected to wheather conditions is an important issue.. In an experiment to investigate the effect of the moisture on a certain kind of composite, the weight gans of collection ofn-21 samples of composite subjected to water diffusion were obta ned. The sample mean is...
please show all hypothesis teating steps 3. Composites are materials that are made by embedding a iber, such as glass or carbon, inside a matrix, such as a metal or a ceramic. Composites are used in civil engineering structures and their degradation when subjected to weather conditions is an important issue. In an experiment to investigate the effect of moisture on a certain kind of composite, the weight gains of a collection of 18 samples of composite subjected to water...