Which of the statements are correct? A condition for using the chi-square goodness-of-fit test is that...
Which of the statements are correct?
- A condition for using the chi-square goodness-of-fit test is that all expected counts must be at least two.
- A condition for using the chi-square goodness-of-fit test is the observations are based on a random sample.
- The chi-square goodness-of-fit test uses n − 5 degrees of freedom.
A) I only
B) II only
C) I and II only
D) II and III only
E) I, II, and III
Homework Answers
Add Answer to:
Which of the statements are correct?
A condition for using the chi-square goodness-of-fit test is
that...
The number of degrees of freedom in a chi-square goodness of fit test depends upon: (1)...
The number of degrees of freedom in a chi-square goodness of fit test depends upon: (1) the number of classes into which the sample observations are classified; (2) the number of observations in the sample; (3) the number of population parameters estimated from the sample data. a. 1 only b. 2 only c. 1 and 2 only d. 1 and 3 only e. none of the above
Which of these statements concerning a chi-square goodness-of-fit test is correct? Multiple Choice a. Population must...
Which of these statements concerning a chi-square goodness-of-fit test is correct? Multiple Choice a. Population must be normally distributed. b. All the expected frequencies must be equal. c. Data could be ratio or interval measurements.
Help Save & Exit Subm Which of these statements concerning a chi-square goodness-of-fit test is correct...
Help Save & Exit Subm Which of these statements concerning a chi-square goodness-of-fit test is correct Multiple Cholce Data could be ratio or Interval measurements. Population must be normally distributed. All the expected frequencles must be equal.
The name given to goodness of fit test was derived based on the hypothesis tested and...
The name given to goodness of fit test was derived based on the hypothesis tested and how good the observed frequencies fit a given pattern. To make a goodness of fitness test, the sample size should be large enough so that the expected frequency for each category is at least 5. There are four commonly used goodness of fit tests: The Chi-Square, Kolmogorov-Smirnov, Anderson-Darling, and Shipiro-Wilk. Observed frequencies, denoted by O, are counts made from experimental data - whereby you...
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure...
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expected cell frequencies are at least five. The sample is divided into 7 intervals. The second through the sixth intervals all have expected cell frequencies of at least five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting the number of intervals, the degrees of freedom for the chi-square statistic is O 2 3...
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure...
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expected cell frequencies are at least five. The sample is divided into 7 intervals. The second through the sixth intervals all have expected cell frequencies of at least five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting the number of intervals, the degrees of freedom for the chi-square statistic is ____. 2, 3,5,...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
Assume that a Chi-square test was conducted to test the goodness of fit to a 3:1...
Assume that a Chi-square test was conducted to test the goodness of fit to a 3:1 ratio and that a Chi-square value of 2.62 was obtained (Table value is equal to 3.84). Should the null hypothesis be accepted? How many degrees of freedom would be associated with this test of significance?
The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees...
The test statistic for goodness of fit has a chi-square distribution with k - 1 degrees of freedom provided that the expected frequencies for all categories are a. 10 or more. b. k or more. c. 2k. d. 5 or more.
2 PLS Assumptions for the chi-square goodness-of-fit test are 1) the data are obtained from a...
2 PLS Assumptions for the chi-square goodness-of-fit test are 1) the data are obtained from a random sample; and 2) the expected frequency for each category must be 5 or more. O True False
Help Save & Exit Subm Which of these statements concerning a chi-square goodness-of-fit test is correct Multiple Cholce Data could be ratio or Interval measurements. Population must be normally distributed. All the expected frequencles must be equal.
In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expected cell frequencies are at least five. The sample is divided into 7 intervals. The second through the sixth intervals all have expected cell frequencies of at least five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting the number of intervals, the degrees of freedom for the chi-square statistic is O 2 3...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
2 PLS Assumptions for the chi-square goodness-of-fit test are 1) the data are obtained from a random sample; and 2) the expected frequency for each category must be 5 or more. O True False
Most questions answered within 3 hours.
-
Give your answer in SI units and to three significant
figures.
A 2.3 m radius cylinder...
asked 6 minutes ago -
Supply the missing quantities. (Assume P1 =
0.4, P2 = 0.6, P3 =
0.4.)
P(A ∩...
asked 11 minutes ago -
The chapter discusses four types of change that organizations
typically encounter—technological, structural, task, and people
change....
asked 10 minutes ago -
A sample of 12 grams of a substance that does not dissociate is
dissolved in 80...
asked 13 minutes ago -
What is the pH of a solution made by mixing 0.438 moles of HBr
and 0.304...
asked 14 minutes ago -
If it takes 100m to stop a car initially moving at 100 m/s
what distance is...
asked 26 minutes ago -
Two resistors have resistances R1 and R2. When the resistors are
connected in series to a...
asked 28 minutes ago -
Why do scientists infer that there were living organisms as far
back as 3.8 billion years...
asked 30 minutes ago -
if a palladium nanoparticle has a density of 12.0gxcm^3, what is
the mass of a nanoparticle...
asked 31 minutes ago -
If you are worried about performing 2 statistical tests on the
same data and that the...
asked 38 minutes ago -
Use Microsoft Excel to determine the rate of return for a
project that has an initial...
asked 49 minutes ago -
During Heaton Company’s first two years of operations, it
reported absorption costing net operating income as...
asked 47 minutes ago