Hey There!:
Sample Mean = 4.4823
SD = 0.1859
Sample Size (n) = 7
Standard Error (SE) = SD/root(n) = 0.0703
alpha (a) = 1-0.99 = 0.01
t(a/2, n-1 ) = 3.7074
Margin of Error (ME) = t(a/2,n-1)x SE = 0.2606
99% confidence interval is given by:
Sample Mean +/- (Margin of Error)
4.4823 +/- 0.2606 = (4.222 , 4.743)
Hope this helps!
Answer:
310,588.5
Explanation:
As is not said we can assume the 2,100 each year to be paid at the end of the year, and the 7% to be used as a compunded anually rate. So let´s first think just about the 2,100, as they are regulary payments, they can be seen as an anuity inmediate, the formula is as follows:

where sn is the future value of the regular payments, i is the interest rate and n is the number of payments and p is the amount of regular payment so in this particular case we have:

=198,367.65
So now let´s think on the gift of 29,000 as it is paid on 10 years, there will remain 20 years with an investment rate of 7% compounded anually. so there we have the classic formula of future value

where FV is the future value, PV is the present value, i is the interest rate per period, and n is the number of periods. Again in this particular case we have:


so the total amont will be:
total=198,367.65+112,220.85
total=310,588.5
Answer: halo error
Explanation: In simple words, halo error refers to the mistake or bias that occur in the performance evaluation when someone evaluates other on the basis of their personal perception and not on the basis of the performance done by that individual.
In the given case, Letitia is evaluated above than others although she sells lesser volume than others. This happens due to the perception of her supervisor that customer service is more important.
Answer:
Supply and Demand
Explanation:
Although there are many factors which are given below:
1. Location of the real property
2. Supply and demand
3. The rate of interest
4. Population size
5. Market trends of property, etc
But the primary driver is supply and demand because if the demand of the property rise than the supply, the price of real property is rising whereas if the supply of the property is rise than the demand, the price of real property is declining
Answer:
b. variable interval
Explanation:
Schedules of reinforcement based on lapsed time are known as interval schedules. They are either fixed-interval or variable-interval schedules.
Variable-interval schedules provide reinforcement/reward after random time-interval. The interval of time is irregular but revolves around some average length of time. Reinforcement is therefore dispensed unevenly within a stated period.