Answer:
a. 2.13. b. (30.53, 34.79). c. The mean prices for two in mid-range restaurants in Hong Kong are relatively less than those in Tokyo restaurants.
Explanation:
The size of the sample is 42 and the mean of the sample is ∑
= 32.66 and the standard deviation of the sample (σ) is √[∑(
-μ)^2 - 1] = √46.6092 = 6.8271
a. α = 1 - (95/100) = 0.05; α/2 = 0.025; the degree of freedom = n-1 = 42-1 = 41; tα/2 = t0.025 = 2.02. Thus, the error margin = (tα/2)*(σ/√n) = 2.02*(6.83/√42) = 2.1279
b. Lower level limit = 32.66 - 2.1279 = 30.5321; Upper level limit = 32.66+2.1279 = 34.7879. The interval estimate = (mean± margin of error) = (30.53, 34.79).
c. The mean prices for two in mid-range restaurants in Hong Kong are relatively less than those in Tokyo restaurants.
Explanation:
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Answer: e)5% and $80,000
Explanation:
$320,000 was generated by the salespeople in this territory.
This territory comprises 10% of a $64 million market.
Territory comprises of = 10% * 64,000,000 = $6,400,000
Their market share is therefore;
=
* 100%
= 5%
Four people made sales of $320,000.
Their productivity = 
= $80,000
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Answer:
Expected Portfolio return = 0.5(10)+0.5(13)= 5+6.5=11.5%
Expected Portfolio SD= 0.5(20)+0.5(30)= 25%
Beta of A, 10= 5+B(6)
5=6B
B= 5/6= 0.833
B of B, 13=5+B(6)
8=6B
B=8/6
B=1.33
b. Portfolio AB's standard deviation is 25%
c. Stock A's beta is 0.8333
These two statements are correct
Explanation: