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the following are the height of 8 students in centimeters suppose sampe of size 3 are taken from this population of 8 students.
student height
a 120
b 130
c 110
d 125
e 152
f 170
g 137
h 155
a) how many sample are possible? list them and cmpute the mean of each example?
b) construct the sampling distribution of the sample means
c) construct the histogram of the sampling distribution of the sample means
How many moles of potassium ions are in solution when 47.12g of K3PO4 is dissolved in water?
0.2 kg coffee at 900C is placed on beaker (specific heat of beaker is 700 J/kg0C) at 200C. the final temperature of the system is 760C. Calculate the mass of the beaker
6.86 kg of water vapor are contained at 150 kPa ad 90 percent quality in a
suitable enclosure. Calculate the heat in kJ which must be added in order to just
produce a saturated vapor. NOTE: - INDICATE THE HS and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE
200 grams metal at 1000C is placed on calorimeter which contains 300 grams water at 180C. If the specific heat of metal is 140 J/kg0C, determine the final temperature of the system!
200 grams metal at 1000C is placed on calorimeter which contains 300 grams water at 180C. If the specific heat of metal is 140 J/kg0C, determine the final temperature of the system!
A piston cylinder containing steam at 700 kPa at 250 degrees celcius undergoes a constant pressure process until the quality is 70%. Determine: a). Work done b). Heat transferred c). Change in internal energy d). Change in enthalpy NOTE: - INDICATE THE HS and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE
The number of samples of size r that can be drawn from a population of size n is given by a representation?
A copper wire that has a radius of 3 cm has a uniform charge density of 12µC/m 2 . Determine the total charge present in a 1.0-m long section of the copper wire.
Growth in potential output is determined by growth in the labor force and growth in labor productivity. Suppose the labor force grows by 1.4 percent a year and labor productivity, based on increased capital and improved technology, grows by 1.1 percent a year. (a) What is the annual growth in potential output? (b) Illustrate the growth in potential output in an AD/AS diagram. (c) Aggregate demand is not changed by the change in potential output. Indicate any output gap caused by the change in potential output.
#340153 on Dec 2023