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poizon [28]
3 years ago
13

A small stock brokerage firm wants to determine the average daily sales (in dollars) of stocks to their clients.A sample of the

sales for 36 days revealed average daily sales of $200,000. Assume that the standard deviation of the population is known to be $18,000.
a. Provide a 95% confidence interval estimate for the average daily sale.

b. Provide a 97% confidence interval estimate for the average daily sale.
Mathematics
1 answer:
Verizon [17]3 years ago
7 0

Answer:

Step-by-step explanation:

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ANSWER PLZ QUICK AND FAST
kherson [118]

Half of n, is option D, n/2.

This is because if you divide something by 2, you are dividing it in half.

Hope this helps!

3 0
3 years ago
Got another question for you guys! What is 12.5 x 4.2?
yarga [219]

Answer:

52.5

Step-by-step explanation:

3 0
2 years ago
Which graph best represents the function f(x)=2x ?
yan [13]

Answer:

B

Step-by-step explanation:

The best - well, only way- is to check a few points.

Namely -1 (unless your eyesight is really poor!), 0, 1, 2, and 3.

f(x) = 2^x\\f(-1) = 2^-^1 = \frac12\\f(0) =2^0 =1\\f(1)= 2^1=2\\f(2)=2^2=4\\f(3)=2^3= 8

Now you can mark all these points in each graph (well, you could if they were on paper and not on a screen) and see which one of the lines passes through all of them. Spoiler alert, it's the B graph.

A represents 2(2^x) = 2^{x+1}, B is the one you want, C is \frac{2^x}2 = 2^{x-1} and D looks like 4^x = 2^2^x

3 0
2 years ago
What does 5 cubed equal?
storchak [24]

Answer:

125

Step-by-step explanation:

it is the multiflication of 5 by itself 3 times (5×5×5=125)

6 0
2 years ago
Read 2 more answers
How many ounces of
telo118 [61]
Find how many oz she ate: 1/2 of 3 is 1.5. 3/4 of 3 is 2.25. 1/2 of 2 is 1. Add all of the oz: 1.5+2.25+1=4.75. She ate 4.75 oz :)
7 0
2 years ago
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