Question
How does the Z equation change for the standardized sample mean?
How does the Z equation change for the standardized sample mean?
Homework Answers
Answer #1
Answer
General equation for the z score is given as
where 
is sample
mean, 
is population mean
and 
is population
standard deviation
When converting the z equation to standardized sample mean, we need to change the standard deviation
new standard deviation becomes 
where n is the sample size
So, the z equation for the standardized sample mean become
Not the answer you're looking for?
Similar Questions
The thiosulfate titrant must be standardized. What does this mean and how is it accomplished?
The thiosulfate titrant must be standardized. What does this
mean and how is it accomplished?
what is the mean value and the standard deviation of the standardized random variable z used...
what is the mean value and the standard deviation of the
standardized random variable z used in statistics ?
What is a confidence interval for a population mean? How does it change when you increase...
What is a confidence interval for a population mean? How does it
change when you increase the sample size? How does it change when
you raise the level of confidence? Are these corresponding changes
to the confidence interval intuitive?
In each situation below, calculate the standardized score (or z-score) for the value x. (a) Mean...
In each situation below, calculate the standardized score (or
z-score) for the value x.
(a) Mean μ = 0, standard deviation σ = 1, value x = 1.7. z =
(b) Mean μ = 9, standard deviation σ = 4, value x = 5. z =
(c) Mean μ = 14, standard deviation σ = 7, value x = 0. z =
(d) Mean μ = -15, standard deviation σ = 15, value x = -60. z
=
How does the temperature and specific heat capacity of a sample of water (the calorimeter) change...
How does the temperature and specific heat capacity of a sample
of water (the calorimeter) change as a different mass or
temperature of hot metal is added to it?
How does the temperature and specific heat capacity of a sample
of water (the calorimeter) change as the volume of water is
changed?
How does the molar enthalpy of dissolution change with the
amount of substance added to water?
How does the molar enthalpy of dissolution change with the
volume of...
Find the standardized test statistic t for a sample with n = 12, x(sample mean) =...
Find the standardized test statistic t for a sample with n = 12,
x(sample mean) = 24, s = 2.1, and α = 0.01 if Ha: μ ≠ 24.5. Round
your answer to three decimal places.
i. How does the equation for valuing a bond change if semiannual payments are made? Find...
i. How does the equation for valuing a bond change if semiannual
payments are made? Find the value of a 10-year, semiannual payment,
10% coupon bond if nominal rd 13%.
people are given a standardized test, the scores result in a sample mean of 73 and...
people are given a standardized test, the scores
result in a sample mean of 73 and a sample standard deviation of
12
a) what is the 99% confidence interval around the
mean
b) the 95% confidence interval
c) possible value for u/(mu) that would be rejected at
the .05 level but accepted at the .01 level
n=25
As we change sample unit size how does this impact variance (spread)?
As we change sample unit size how does this impact variance
(spread)?
Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1)...
Given a standardized normal distribution (with a mean of 0 and a
standard deviation of 1) what is the probability that: Z is less
than 1.08?, Z is greater than -0.21?, Z is less than -0.21 or
greater than the mean, Z is less than -0.21 or greater than
1.08?
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 13 minutes ago
asked 16 minutes ago
asked 18 minutes ago
asked 22 minutes ago
asked 28 minutes ago
asked 30 minutes ago
asked 42 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago