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Which of the following statements is incorrect.
Select one:
A. If the population in South Africa grows at 5% per year, and the economic growth rate is 3% per year, a decline in the real GDP per capita occurs.
B. Stabilization policies refers to fiscal policy and monetary policy.
C. An increase in nominal GDP can result from an increase in the quantity produced of goods and services and or/the increase in the prices of goods and services produced.
D. An increase of 20% in the price of lamb meat is an example of inflation.
A vendor claims that the variance for measurement of tiles that his factory produce were 13
square feet. A sample of nine tiles was measured in square feet and the results of the tiles
produced were recorded as below:
204.5 206.3 202.4
207.8 203.1 206.2
203.8 206.6 205.8
(Assuming the sample comes from a normal population)
i) Calculate the point estimate of the population mean.
(2 marks)
ii) Compute the variance and standard deviation.
(3 marks)
iii) Determine the estimate of 95% confidence interval for the population mean of the
tiles.
1.Find the potential at a distance of 0.07 m from a -6 nC charge.
2.What would be the PE of a -5 nC charge placed at this point?
3.What is the electric field strength at a point 40 cm from the a charge of 5x10^-9 C?
Consider two bonds, HI and LI. The HI bond has a 10% coupon rate and the
LI bond has a 5% coupon rate. Both bonds pay interest annually and are priced to yield
10%. Suppose the following interest scenarios are possible at the point in time when both
bonds have five years remaining to maturity:
A vendor claims that the variance for measurement of tiles that his factory produce were 13 square feet. A sample of nine tiles was measured in square feet and the results of the tiles produced were recorded as below: 204.5 206.3 202.4 207.8 203.1 206.2 203.8 206.6 205.8 (Assuming the sample comes from a normal population) i) Calculate the point estimate of the population mean. (2 marks) ii) Compute the variance and standard deviation. (3 marks) iii) Determine the estimate of 95% confidence interval for the population mean of the tiles.
A bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottle are supposed to contain 300 millilimeters. In fact, the contents vary according to a normal distribution with mean =298 ml and standard deviation = 3ml.
a. What is the probability that an individual bottle contains less than 295 ml?
b. What is the probability that the mean contents of the bottles in a six-pack is less than 295 ml?
A 37.4 mL sample of H2 at STP would contain how many grams of hydrogen?
When solid barium hydroxide is mixed in a beaker with solid ammonium thiocyanate, a reaction occurs. The breaker get very cold. Is the reaction endothermic or exothermic?
i. Draw the circular flow diagram
ii. List all the injections and withdrawals
iii. Explain how withdrawals and injections may impact an economy.
.
What is the electric field strength at a point 40 cm from a charge of 5x10⁹ C?
