To determine if a set of ungrouped, raw data is normally distributed, the cumulative relative frequency...
To determine if a set of ungrouped, raw data is normally distributed, the cumulative relative frequency distribution of the raw data is compared to a ____________.
Select one:
a. Grouped relative frequency distribution
b. Cumulative normal distribution
c. Anderson-Darling statistic
d. Chi-square statistic
Homework Answers
Answer is b)
To determine if a set of ungrouped, raw data is normally distributed, the cumulative relative frequency distribution of the raw data is compared to a Cumulative normal distribution.
Add Answer to:
To determine if a set of ungrouped, raw data is normally
distributed, the cumulative relative frequency...
To determine if a set of ungrouped raw data is normally distributed, what test statistic would...
To determine if a set of ungrouped raw data is normally distributed, what test statistic would we use? Select one: a. A z-statistic b. An F-statistic c. Anderson-Darling d. A chi-square
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed?...
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use α=0.01. Class boundaries 49.5-58.5 58.5-67.5 67.5-76.5 76.5-85.5 85.5-94.5 Frequency, f 202 61 79 35 5 Using a chi-square goodness-of-fit test, you can decide, with some degree of certainty, whether a variable is normally distributed. In all chi-square tests for normality, the null and alternative hypotheses are as follows. H0: The test scores have a normal distribution. Ha: The test scores do not have...
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed?...
The frequency distribution shows the results of 200 test scores.
Are the test scores normally distributed?
PART B. Determine the critical
value and the rejected region
PART C. Calculate the test statistic
PART D. Decide whether to reject or fail to reject the
null hypothesis
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use α= 0.01. Complete parts (a) through (d) Class boundaries Frequency, f 49.5-58.5 20 58.5-67.5 62 67.5-76.5 79 76.5-85.5...
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed?...
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use a =0.01. Complete parts (a) through (e). Class boundaries 49.5-58.5 58.5-67.5 Frequency, f 19 62 D 67.5-76.5 81 76.5-85.5 33 85.5-94.5 5 Using a chi-square goodness-of-fit test, you can decide, with some degree of certainty, whether a variable is normally distributed. In all chi-square tests for normality, the null and alternative hypotheses are as follows. Ho: The test scores have a normal distribution....
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a...
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a chi-square test using a=0.05 to determine if the observed frequencies follow the normal probability distribution with mu=99 and sigma=21. Random Variables X Frequency Fo Less than 78 10 78 to under 99 15 99 to under 120 19 120 and more 6 Total 50 Calculate the chi-square test statistic, chi squared χ2=_____. p-value=______.
construct a frequency distribution for the data set. Use the following table headings: class,frequency,midpoint,relative frequency,cumulative frequency...
construct a frequency distribution for the data set. Use the following table headings: class,frequency,midpoint,relative frequency,cumulative frequency Number of classes:5 Data set: Exam scores for all students in statistics class 83,92,94,82,73,98,78,85,72,90,89,92,96,89,75,85,63,47,75,82
for each data set a. determine a frequency distribution b. obtain a relative frequency distribuation c.draw...
for each data set a. determine a frequency distribution b. obtain a relative frequency distribuation c.draw a pie chart d. Consruct a bar graph 1.C A B B A 2.D D B D D A A C A A
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a...
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a chi-square test using a alpha=0.05 to determine if the observed frequencies follow the normal probability distribution with mu=99 and sigma=20. Random Variable, x Frequency, f o Less than 79 9 79 to under 99 16 99 to under 119 18 119 and more 7 Total 50 Calculate the chi-square test statistic, χ2. χ2.=____ Determine the p-value_____ State the appropriate conclusion: Do not reject/Reject H...
Consider the observed frequency distribution for a set of grouped random variables available belo...
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a chi square test using a α =0.05 to determine if the observed frequencies follow the normal probability distribution with u-101 and ơ-19 EEl Click the icon to view the observed frequency distribution. State the appropriate null and alternative hypotheses. What is the null hypothesis? O A. H The mean number of the random variable is equal to 101 O B. Ho: The mean number...
The accompanying cumulative relative frequency distribution summarizes data obtained in a study of the ending overages...
The accompanying cumulative relative frequency distribution summarizes data obtained in a study of the ending overages (in dollars) for the cash register balance at a business. Complete parts a through c below Click the icon to view the cumulative frequency distribution of the overages. a. Determine the proportion of the days in which there were no shortages. (Type an integer or a decimal. Do not round.) b. Determine the proportion of the days the cash register was less than $20...
The frequency distribution shows the results of 200 test scores.
Are the test scores normally distributed?
PART B. Determine the critical
value and the rejected region
PART C. Calculate the test statistic
PART D. Decide whether to reject or fail to reject the
null hypothesis
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use α= 0.01. Complete parts (a) through (d) Class boundaries Frequency, f 49.5-58.5 20 58.5-67.5 62 67.5-76.5 79 76.5-85.5...
The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use a =0.01. Complete parts (a) through (e). Class boundaries 49.5-58.5 58.5-67.5 Frequency, f 19 62 D 67.5-76.5 81 76.5-85.5 33 85.5-94.5 5 Using a chi-square goodness-of-fit test, you can decide, with some degree of certainty, whether a variable is normally distributed. In all chi-square tests for normality, the null and alternative hypotheses are as follows. Ho: The test scores have a normal distribution....
Consider the observed frequency distribution for a set of grouped random variables available below. Perform a chi square test using a α =0.05 to determine if the observed frequencies follow the normal probability distribution with u-101 and ơ-19 EEl Click the icon to view the observed frequency distribution. State the appropriate null and alternative hypotheses. What is the null hypothesis? O A. H The mean number of the random variable is equal to 101 O B. Ho: The mean number...
The accompanying cumulative relative frequency distribution summarizes data obtained in a study of the ending overages (in dollars) for the cash register balance at a business. Complete parts a through c below Click the icon to view the cumulative frequency distribution of the overages. a. Determine the proportion of the days in which there were no shortages. (Type an integer or a decimal. Do not round.) b. Determine the proportion of the days the cash register was less than $20...
Most questions answered within 3 hours.
-
a) Draw two water molecules.
b) Clearly name and label the type of bond that exists...
asked 33 minutes ago -
C - Language
Write a loop that sets each array element to the sum of itself...
asked 1 hour ago -
(63
#14)
which of the following statments best describes how chamging
the concentration of the substances...
asked 5 hours ago -
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 6 hours ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 8 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 8 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 9 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 10 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 10 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 10 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 10 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 10 hours ago