Question

Can
someone "dumb" this question down for me? Can you explain every
step of how you got your answer? I need to see all work and
understand it.

For each of the following three sample sizes, con- struct the
95% confidence interval. Use a sample proportion of 0.40
throughout. What happens to interval width as sample size
increases? Why?

Ps = 0.40

Sample A: N = 100

Sample B: N = 1000

Sample C: N = 10,000

Answer #1

Can you please explain every question step by step. I am trying
to understand it as best as I can.
Dr. Smith believes that exposing babies and children to
classical music with raise their intelligence quotient (IQ). To
test this idea, he administers IQ tests to 10 children of his
friends who listen to classical music on a regular basis. He then
compares the results from these 10 kids to the national average,
which is 100. The results are below:...

***Can you please explain step by step on how to do this
question*** and please show formulas used so i can understand how
to do it on my own. thank you.
The cash prices of six-month and one-year Treasury bills are
94.0 and 89.0. A 1.5-year bond that will pay coupons of $4 every
six months currently sells for $94.84. A two-year bond that will
pay coupons of $5 every six months currently sells for $97.12.
Calculate the six-month, one-year,...

I know this has been answered before but I do NOT understand.
Can you explain it better? We know n=900 and p-hat is .13, and 97.5
% confidence interval. An explanation would be appreciated for a
beginner.
According to a survey with 900 males, 13% are left-handed.
Construct a 97.5% confidence interval for the population
proportion of all males who are left-handed.
[3 marks]
If both the sample size and the number of successes are
doubled, what is the effect...

Can you explain to me in details step by step how to
work this out
---
Suppose that the 1-month USD LIBOR rate (continuously
compounded, CC) is 2.1%, the 7-month USD LIBOR rate (CC) is 2.6%,
and the 12-month USD LIBOR rate (CC) is 2.8%, all per annum.
In a currency swap, a financial institution pays a fixed rate of
3% per annum on a notional principal of USD 100 million and
receives a fixed rate of 2% per annum...

Can you Please explain me this Question? Thanks!
a) Find z a/2 (two tailed) for the 78% confidence interval.
b) Find t a/2 when n=22 for the 99.5% confidence interval for
the mean.

Can you please explain me this question? Thanks!
Construct a 95% confidence interval for the mean of a population
if n=25, x̅= 42.3 and σ= 3.2. Assume the mean is normally
distributed.

Player – sample data
Can someone explain to me in more detail how to solve this
exercise, that I am very confused about 1NF, 2NF, and 3NF
Thank you
ID
FIRST
LAST
GENDER
1
Jim
Jones
Male
2
Betty
Smith
Female
3
Jim
Smith
Male
4
Lee
Mann
Male
5
Samantha
McDonald
Female
With the Player entity, discussion expands to identify 1NF-
3NF.
You need to expand the database fields into tables from 1NF
--> 2NF; 2NF --> 3NF.
What...

Can someone please give me a detailed explanation of how to
solve these? thank you!
QUESTION 4 Use the following information to answer the next two
questions. Suppose the spot quotes for the Mexican pesos and pounds
are $.1252‑58 and $1.055‑62, respectively. What is the ask quote
for pounds in terms of pesos? Round intermediate calculations to
four decimal places.
8.4420
8.4265
8.4824
8.3125
Question 5 Find the bid quote for pounds in terms of pesos.
Round intermediate steps and...

CAN SOMEONE PLEASE ANSWER THIS QUESTION FOR ME? THIS IS MY
SECOND TIME POSTING IT. PLEASE DO NOT ANSWER IF YOU DO NOT
UNDERSTAND THE PROBLEM. I NEED STEP-BY-STEP HELP IN ORDER TO
UNDERSTAND HOW TO SOLVE FUTURE PROBLEMS
The accompanying data file contains 20 observations for
t and yt.
DATA EXCEL FILE:
t
1
2
3
4
5
6
7
8
9
10
yt
13.8
13.1
15.1
9.7
12.1
11
11.1
10.3
13
8.1
t
11
12
13
14...

Can someone let me know f my calculations are correct.
Thanks!
You have 22.4 L of an unknown noble gas at standard temperature
and pressure with a density of 5.861 g/L
a. How many moles of this gas are in the
container?
i. n= PV/RT=
R=0.082057 L.atm/K.mol
T=273.15 K
Volume= 22.4 L
Density=5.861 g/l
P=1 atm
so: n=(1atm*22.4L)/ (0.082057 L.atm/K.mol* 273.15 K)=
n=(22.4)/(0.082057 mol*273.15)
n=22.4/22.1= 1 mole
b. What is the molar mass of this gas?
i. M=dRT/P
M=(5.861g/L*0.082057 L.atm/ K.mol*273.15...

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