Scenario: A study was done that found the average amount of…

Scenario: A study was done that found the average amount of money spent by all individuals on Black Friday is $362. Assume this distribution is skewed with a population standard deviation of $63. Suppose you were conducting a study on Black Friday shopping and as a part of that study you randomly sampled 81 shoppers on Black Friday. You are interested in determining how much money those randomly sampled individuals spent on average. Use this information to answer the following questions.  Would you be able to use the Central Limit Theorem for this scenario? What would the mean of the sampling distribution of the sample mean be for this scenario? What would the standard deviation of the sampling distribution of the sample mean be for this scenario

Two blocks are stacked as shown inside a vacuum chamber. The…

Two blocks are stacked as shown inside a vacuum chamber. The bottom surfaces of theblocks are notably rough. The top block (block A) is pushed with a force F. The blocksdon’t move. Consider all the forces (if any) acting on block B in this situation. In total, how many forces act on block B in the horizontal and vertical directions?  

Two objects having masses m1 and m2 are connected to each ot…

Two objects having masses m1 and m2 are connected to each other as shown in the figure and are released from rest. There is no friction on the table surface or in the pulley. The masses of the pulley and the string connecting the objects are completely negligible. What must be true about the tension T in the string just after the objects are released?  

Prof. Hamilton is straining to lift a large crate, without s…

Prof. Hamilton is straining to lift a large crate, without success because it is too heavy.(Does he even lift?) We denote the forces on the crate as follows: P is the upward forcethe professor exerts on the crate, C is the vertical contact force (normal force) exerted on the crate bythe floor, and W is the weight of the crate. How are the magnitudes of these forcesrelated while the professor is trying unsuccessfully to lift the crate?(HINT: the crate has 0 acceleration in this situation)