sweetrainyday8s2
2022-03-02
"Determine the critical values for these tests of a population standard deviation.
(a) A right-tailed test with 18 degrees of freedom at the
(b) A left-tailed test for a sample of size n= 24 at the
(c) A two-tailed test for a sample of size n= 26 at the
(a) The critical value for this right-tailed test is
(b) The critical value for this left-tailed test is
(c) The critical values for this two-tailed test are
Cheryl Stark
Beginner2022-03-03Added 7 answers
a) The test's right-tailed nature is a given.
There are 18 degrees of freedom.
The significance threshold is 0.01.
Excel's "=CHISQ.INV.RT(0.01,18)" formula is used to get the chi-square test's critical value.
34.805 is the right-tailed critical value.
b) The test is assumed to be left-tailed.
24 people make up the sample.
n-1=24-1=23 is the number of degrees of freedom.
The significance threshold is 0.10.
Excel's "=CHISQ.INV(0.10,23)" formula is used to get the chi-square test's critical value.
14.848 is the left-tailed critical value.
c) The two-tailed nature of the test is a given.
26 people make up the sample.
N-1=26-1=25 is the number of degrees of freedom.
The significance threshold is 0.01.
Excel's "=CHISQ.INV(0.005,25)" formula is used to get the lower critical value for the chi-square test.
Excel's "=CHISQ.INV.RT(0.005,25)" formula is used to get the chi-square test's upper critical value.
The critical values with two tails are (10.520, 46.928).
The product of the ages, in years, of three (3) teenagers os 4590. None of the have the sane age. What are the ages of the teenagers???
Use the row of numbers shown below to generate 12 random numbers between 01 and 99
78038 18022 84755 23146 12720 70910 49732 79606
Starting at the beginning of the row, what are the first 12 numbers between 01 and 99 in the sample?
How many different 10 letter words (real or imaginary) can be formed from the following letters
H,T,G,B,X,X,T,L,N,J.
Is every straight line the graph of a function?
For the 1s orbital of the Hydrogen atom, the radial wave function is given as: (Where ∘A)
The ratio of radial probability density of finding an electron at to the radial probability density of finding an electron at the nucleus is given as (). Calculate the value of (x+y).
Find the sets and if and . Are they unique?
What are the characteristics of a good hypothesis?
If x is 60% of y, find .
A)
B)
C)
D)
The numbers of significant figures in are:
A)Two
B)Three
C)Ten
D)Thirty one
What is positive acceleration?
Is power scalar or vector?
What is the five-step process for hypothesis testing?
How to calculate Type 1 error and Type 2 error probabilities?
How long will it take to drive 450 km if you are driving at a speed of 50 km per hour?
1) 9 Hours
2) 3.5 Hours
3) 6 Hours
4) 12.5 Hours
What is the square root of 106?