postillan4
2021-01-30
Usamah Prosser
Skilled2021-01-31Added 86 answers
Let the standard deviation of the d
So, the population variance is,
Let the sample standard deviation of lower income group of 9-to-11 year's old boys be
So, the sample variance is,
Test whether the standard deviation from the low-income group is comparable to that of the general population
The null and alternative hypotheses of the test are,
Let the sample size be
The degrees of freedom for the test is,
Find the critical values.
Using the chi-square distribution tables for 50 degrees of freedom, the lower and upper critical values are, Lower critical value
Upper critical value
The decision rule is to reject
The chi-square test statistic is,
So, the shi-equated test statistic is
The p-value is,
The probability value of test is
The
Thus, with
Conclusion:
The test statistic value does not falls in the rejection region. That is, the test statistic falls between the two critical values
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?