Question

A sample size of 353 has a population mean of 45.2 and standard deviation of 2.3. If significance level is .05 test H0: \mu = 47 vs. Ha: \mu>47, find the probability of the type two error \beta(49)

Answer #1

A sample mean, sample size, and population standard deviation
are provided below. Use the one-mean z-test to perform the
required hypothesis test at the 1% significance level. x bar =26,
n=36, σ=88, H0: mu=3, μ=31, Ha: mu < 31
Find test statistic Z?

A sample mean, sample size, and population standard deviation
are provided below. Use the one-mean z-test to perform the
required hypothesis test at the 55% significance level.
x=35, n=34, o=7, H0: u=37, Ha: u<37

A sample mean, sample size, and population standard deviation
are provided below. Use the one-mean z-test to perform the required
hypothesis test at the 5% significance level.
x̄ = 27, n = 12, σ = 5
Ha : μ> 23

A sample size 39 will be drawn from a population with mean 47
and standard deviation 11. Use the TI-84 Plus calculator.
A) Is it appropriate to use the normal distribution to find
probabilities for X?
B) Find the probability that X will be between 48 and 49. ROund
to at least four decimals.
C) Find the 41st percentile of X rounded to at least two
decimals.

A sample mean, sample size, and population standard deviation
are provided below. Use the one-mean z-test to perform the
required hypothesis test at the 11%significance level.
X=44 N=10 o=6 Ho: u=38 Ha: u>38

6.The expected mean of a normal population is 100, and its
standard deviation is 12. A sample of 49 measurements gives a
sample mean of 96. Using the α = 0.01 level of significance a test
is to be made to decide between “population mean is 100” or
“population mean is different than 100.” a) State null H0. b) What
conclusion can be drawn at the given level of significance α =
0.01. c) What conclusion can be drawn if...

6. The expected mean of a normal population is 100, and its
standard deviation is 12. A sample of 49 measurements gives a
sample mean of 96. Using the α = 0.01 level of significance a test
is to be made to decide between “population mean is 100” or
“population mean is different than 100.” a) State null H0. b) What
conclusion can be drawn at the given level of significance α =
0.01. c) What conclusion can be drawn...

A sample mean, sample size, and sample standard deviation are
provided below. Use the one-mean t-test to perform the required
hypothesis test at the 5% significance level.
X=25 s=9 n=24 H0: u=24 Ha: u>24

Calculate the margin of error for the population mean using
sample data: sample standard deviation s = 14, sample size N = 49.
Use significance level alpha = 0.05.

.6 The expected mean of a normal population is 100, and its
standard deviation is 12. A sample of 49 measurements gives a
sample mean of 96. Using the α = 0.01 level of significance a test
is to be made to decide between “population mean is 100” or
“population mean is different than 100.” a) State null H0. b) What
conclusion can be drawn at the given level of significance α =
0.01. c) What conclusion can be drawn...

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