A variable contains five categories. It is expected that data are uniformly distributed across these five...
A variable contains five categories. It is expected that data are uniformly distributed across these five categories. To test this, a sample of observed data is gathered on this variable resulting in frequencies of 27, 30, 29, 21, and 24. Using α = .01, the degrees of freedom for this test are ___.
|
5 |
|
4 |
|
3 |
|
2 |
|
1 |
Homework Answers
Number of categories is 5 = n
Degrees fo freedom is n-1=5-1=4
chi square distribution is applied
Add Answer to:
A variable contains five categories. It is expected that data
are uniformly distributed across these five...
A variable contains five categories. It is expected that data are uniformly distributed across these five...
A variable contains five categories. It is expected that data are uniformly distributed across these five categories. To test this, a sample of observed data is gathered on this variable resulting in frequencies of 27, 30 29, 21, and 24. Using a = .01, the appropriate decision is - O reject the null hypothesis that the observed distribution is uniform reject the null hypothesis that the observed distribution is not uniform O do not reject the null hypothesis that the...
1.) A variable contains seven categories. It is expected that data are uniformly distributed across these...
1.) A variable contains seven categories. It is expected that data are uniformly distributed across these seven categories. To test this, a sample of observed data is gathered on this variable resulting in frequencies of 27, 30, 29, 21, 18, 33 and 24. What is the value of test statistic equals to, using a significance level of 1%? a. a. 18.475 b. b. 10.645 c. c. 6.46 d. d. 0.374
If we have 8 categories and we are testing whether the data is uniformly distributed (equally...
If we have 8 categories and we are testing whether the data is uniformly distributed (equally likely) and our sample size is 120, what would be the expected value of each cell
The following table contains observed frequencies for a sample of . Column Variable Row Variable A...
The following table contains observed frequencies for a sample of . Column Variable Row Variable A B C P 35 50. 40 Q 15 20. 30 Test for independence of the row and column variables using . What is the p-value? Compute the value of the test statistic (to 2 decimals). What is the p-value?
11.2 You intend to conduct a goodness-of-fit test for a multinomial distribution with 7 categories. You...
11.2
You intend to conduct a goodness-of-fit test for a multinomial distribution with 7 categories. You collect data from 74 subjects. What are the degrees of freedom for the x2 distribution for this test? d.f. = Submit License Question 1. Points possible: 1 Unlimited attempts. You are conducting a multinomial Chi-Square Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: Ho:PA = 0.2; PB = 0.3; pc = 0.3; PD = 0.2...
1. The number of hours per week that 200 college students spend on the Internet is...
1. The number of hours per week that 200 college students spend on the Internet is grouped into classes (0 − 3),(4 − 7),(8 − 11),(12 − 15),(16 − 19),(20 − 23),(24 − 27) with observed frequencies of 12, 25, 36, 45, 34, 31, and 17. The grouped mean and standard deviation are found from the data. The null hypothesis is that the data is normally distributed. Using the mean and standard deviation, the expected frequencies are found to be...
CENGAGE MINDTAP Complete: Chapter 17 Problem Set ALU, We waw c e , this page you...
CENGAGE MINDTAP Complete: Chapter 17 Problem Set ALU, We waw c e , this page you eu.LIC TRIGE 4. The chi-square test for goodness of fit - No difference from a known population Aa Aa Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The authors report the following frequency data on the household size of the 2,352 welfare recipients in their random sample: Observed Frequencies Household Size 5-or-more-person 4-person 3-person...
Question 1 of 4 For the following observed and expected frequencies: Observed 39 43 42 109 Expected 38 48 45 S 6 Download data Test the hypothesis that the distribution of the observed fr...
Question 1 of 4 For the following observed and expected frequencies: Observed 39 43 42 109 Expected 38 48 45 S 6 Download data Test the hypothesis that the distribution of the observed frequencies is as given by the expected frequencies. Use thea -0.025 level of significance and theP-value method with the TI-84 calculator Part 1 State the null and alternate hypotheses. Ho: The distribution of the observed frequencies ts H1: The distribution of the observed frequencies differs from that...
You are conducting a multinomial hypothesis test (α = 0.05) for the claim that all 5...
You are conducting a multinomial hypothesis test (α = 0.05) for the claim that all 5 categories are equally likely to be selected. Complete the table. Category Observed Frequency Expected Frequency A 10 B 5 C 21 D 14 E 8 What is the chi-square test-statistic for this data? χ2= What are the degrees of freedom for this test? d.f.= What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = Is the P-Value... A....
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...
A variable contains five categories. It is expected that data are uniformly distributed across these five categories. To test this, a sample of observed data is gathered on this variable resulting in frequencies of 27, 30 29, 21, and 24. Using a = .01, the appropriate decision is - O reject the null hypothesis that the observed distribution is uniform reject the null hypothesis that the observed distribution is not uniform O do not reject the null hypothesis that the...
11.2
You intend to conduct a goodness-of-fit test for a multinomial distribution with 7 categories. You collect data from 74 subjects. What are the degrees of freedom for the x2 distribution for this test? d.f. = Submit License Question 1. Points possible: 1 Unlimited attempts. You are conducting a multinomial Chi-Square Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: Ho:PA = 0.2; PB = 0.3; pc = 0.3; PD = 0.2...
CENGAGE MINDTAP Complete: Chapter 17 Problem Set ALU, We waw c e , this page you eu.LIC TRIGE 4. The chi-square test for goodness of fit - No difference from a known population Aa Aa Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The authors report the following frequency data on the household size of the 2,352 welfare recipients in their random sample: Observed Frequencies Household Size 5-or-more-person 4-person 3-person...
Question 1 of 4 For the following observed and expected frequencies: Observed 39 43 42 109 Expected 38 48 45 S 6 Download data Test the hypothesis that the distribution of the observed frequencies is as given by the expected frequencies. Use thea -0.025 level of significance and theP-value method with the TI-84 calculator Part 1 State the null and alternate hypotheses. Ho: The distribution of the observed frequencies ts H1: The distribution of the observed frequencies differs from that...
Most questions answered within 3 hours.
-
A
752 mL sample of water was placed in a 1000 gram pan of aluminum.
The...
asked 1 minute from now -
1 point) Given the significance level α=0.01 find the following:
(a) left-tailed z value z= (b)...
asked 6 seconds from now -
Calculate the expected value, the variance, and the standard
deviation of the given random variable X....
asked 1 minute ago -
Assume that in a hydrogen atom, the electron circles the nucleus
in a circle of radius...
asked 5 minutes ago -
Describe two obstacles that makes fixing atmospheric nitrogen
difficult.
asked 10 minutes ago -
T
F 53) Most differences
between human groups are the result of biology rather than
culture....
asked 15 minutes ago -
A 5.20 mW helium neon laser emits a visible laser beam with a
wavelength of 633...
asked 18 minutes ago -
Assignment:
Your
organization has made a strategic decision
to
outsourcework
currently performed in house. You have...
asked 17 minutes ago -
A hospital performs 100 surgeries per week. The probability that
complications after surgery occur is 10%....
asked 17 minutes ago -
In preparing its cash flow statement for the year ended December
31, 2018, Green Co. gathered...
asked 19 minutes ago -
Donna is 18 years old and full time accounting student.She is
saving for an overseas holiday...
asked 19 minutes ago -
Service-oriented architectures (SOA) provide
object-oriented architectures for web platforms that represent a
collection of services. SOA...
asked 20 minutes ago