Answer:
0.0139
Explanation:
Given that:
The number of sample (n) = 21
The sample distribution has mean (μ) and a standard deviation of σ/√n
The z score is given as (x - mean)/ standard deviation
x = 94.8 wpm, let us assume that σ = 10 and μ = 90
Therefore: z = (x - μ) / (σ/√n) = (94.8 - 90) / (10/√21) = 2.2
To calculate the probability using Z table:
P(X>94.8) = P(Z>94.8) = 1 - P(Z<94.8) = 1 - 0.9861 = 0.0139
The probability is low that is less than 0.05, the program is more effective than the old one.
Answer:
0.079
Explanation:
Price elasticity of demand using midpoint formula can be calculated as follows
Formula
Elasticity of demand = (change in quantity/average quantity)/(change in price/average price)
Calculation
Elasticity of demand = (600/10,900)/(-2.1/3.05)
Elasticity of demand =-0.055 / -0.688
Elasticity of demand =-0.079
working
Change in price (2-4.1) = -2.1
Average price (2+4.1)/2=3.05
Change in quantity (11,200-10600) = 600
average quantity (11,200+10,600)/2 = 10,900
The elasticity of demand is inelastic as the elasticity is below 1.
Answer:
D. structural unemployment.
Explanation:
D
Structural unemployment is caused by changes in the economy, such as shifts in manufacturing techniques, increased use of computers and electronic machines, and increases in the production of services instead of goods.
Structural unemployment is caused by technological change.
Cyclical unemployment is caused by business cycles. In down turns, unemployment rises and falls during a boom.
Frictional unemployment is the period between when Labour leaves his job and gets another one.
Answer:
Product Life Cycle Analysis
Explanation: