Case$-1$: A store manager observes that the morale of

employees in her supermarket is low. She thinks that if their

working conditions are improved, pay scales raised, and the

vacation benefits made more attractive, the morale will be

boosted. She doubts, however, if an increase in pay scales

would raise the morale of all employees.

Answer the following

Draw a diagram to show the relation between the variables$)$

Develop a null hypothesis of the above case

Develop an alternate hypothesis of the above case

Case $2$: A foreman thinks that the low efficiency of the

machine tool operators is directly linked to the high level of

fumes emitted in the workshop. He would like to prove this to

his supervisor through a research study.

Draw a diagram to show the relation between the variables

Develop a conditional hypothesis of the above case $($if $.....$then

Develop a directional a directional hypothesis of the above case

Develop a non$-$directional a directional hypothesis of the above case