When determining how well an observed set of frequencies fit an expected set of frequencies, what...
When determining how well an observed set of frequencies fit an expected set of frequencies, what is the test statistic for the test of the Uniform distribution?
F-statistic t-statistic. statistic z-statistic
Homework Answers
test statistic for the test of the Uniform distribution X2 statisitc
(since we will apply chi square test of goodness of fit to test if uniform distribution model is good fit)
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When determining how well an observed set of frequencies fit an
expected set of frequencies, what...
A(n) __________ statistic reflects the overall lack of fit between the expected and observed frequencies. nominal...
A(n) __________ statistic reflects the overall lack of fit between the expected and observed frequencies. nominal variable chi-square expected frequency population
(d) Test the observed frequencies ved frequencies against the expected frequencies using a goodness-of-fit ainst the...
(d) Test the observed frequencies ved frequencies against the expected frequencies using a goodness-of-fit ainst the expected freque test. The relevant critical value is x2 = 5.991. Show your work. e) Do these results support or contradict your prediction from question (a)? Explain in detail. 8. Most domestic cats (Felis cattus) are well-known junkies of catnip, Nepeta cataria. However, not all are. Some just ignore it. It turns out that other cat species, including leopards (Panthera pardis), respond to catnip...
A distribution and the observed frequencies of the values of a variable from a simple random sample of the population are provided below. Use the chi-square goodness-of-fit test to decide, at the spe...
A distribution and the observed frequencies of the values of a variable from a simple random sample of the population are provided below. Use the chi-square goodness-of-fit test to decide, at the specified significance level, whether the distribution of the variable differs from the given distribution Distribution: 0.1875, 0.1875, Observed frequencies: 16, 20, 24, 36 Significance level 0.05 0.3125, 0.3125 Determine the null and alternative hypotheses. Choose the correct answer below. OA. H: The distribution of the variable differs from...
11. Testing Goodness-of-Fit with a Discrete Uniform: An observed frequency distribution is as follows: Number of...
11. Testing Goodness-of-Fit with a Discrete Uniform: An observed frequency distribution is as follows: Number of successes Frequency 0 90 1 1 18 2 60 3 19 It is claimed that the above observed distribution comes from a Discrete Uniform Distribution. • What is the hypothesis of interest? • What are the expected counts? • What is the name and value of appropriate test statistic? • What is the pvalue ? What is your conclusion?
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...
QUESTION 5 In a goodness-of-fit test to see if a set of 100 values were randomly drawn from a nor...
QUESTION 5 In a goodness-of-fit test to see if a set of 100 values were randomly drawn from a normal distribution, the quartiles and median (i.e., the 0.25, 0.5, and 0.75 quantiles) for the normal distribution were used to determine intervals for sorting the data. What is the expected number of values that fall into each interval assuming the 100 numbers were drawn from the normal distribution? QUESTION 6 Consider again the goodness-of-fit described in the previous problem. Assuming that...
Consider the following discrete probability distribution along with observed frequencies for each day of the week....
Consider the following discrete probability distribution along with observed frequencies for each day of the week. Complete parts a and b below. Weekday Monday Tuesday Wednesday Thursday Friday Total Probability 0.10 0.20 0.05 0.30 0.35 1.00 Observed Frequency, f Subscript o 12 26 9 39 44 130 a. Perform a chi-square test using alphaequals0.05 to determine if the observed frequencies follow a discrete probability distribution. Determine the null and alternative hypotheses. Choose the correct answer below. A. Upper H 0:...
1 Normal 1 No Spac H Paragraph HOW "FIT" IS YOUR DATA SET? Problem l: How...
1 Normal 1 No Spac H Paragraph HOW "FIT" IS YOUR DATA SET? Problem l: How random are your numbers? In this activity, find a friend, a family member or a class mate and ask them to give y 100 random digits (ranging from O to 9) from their head without the use of a calculat computer or a printed random table numbers. (3 4 4 2 1 64 8 9 078 6 555 etc) Then make a frequency table...
Lab 12.1 Performing a Goodness of Fit Test This activity will involve of M&M's to the...
Lab 12.1 Performing a Goodness of Fit Test This activity will involve of M&M's to the expected color distribution that is advertised by the manufacturer. Do you think the advertised color distribution is accurate? How can you decide? comparing the observed color distribution in a bag For this activity, you will need a bog of M&M's in the traditional colors (no holiday or special packs). 1. Open your bag of M&M's and count the number of M&M's. Number of M&M's...
12. The observed frequencies and calculated expected frequencles in parenthesis) of 200 students on their preference...
12. The observed frequencies and calculated expected frequencles in parenthesis) of 200 students on their preference for a university health plan is shown Plan A 40(36) 20(24) Plan B 50(54) 40(36) No Preference 0(30) 20(20) Female Male Expected frequencies are in parenthesis. You are to do test of independence with the null hypothesis, Ho: The plans A, B, and no preference are independence of gender (male and female). a) Find the degree of freedom. 2 b) Find the critical value...
(d) Test the observed frequencies ved frequencies against the expected frequencies using a goodness-of-fit ainst the expected freque test. The relevant critical value is x2 = 5.991. Show your work. e) Do these results support or contradict your prediction from question (a)? Explain in detail. 8. Most domestic cats (Felis cattus) are well-known junkies of catnip, Nepeta cataria. However, not all are. Some just ignore it. It turns out that other cat species, including leopards (Panthera pardis), respond to catnip...
A distribution and the observed frequencies of the values of a variable from a simple random sample of the population are provided below. Use the chi-square goodness-of-fit test to decide, at the specified significance level, whether the distribution of the variable differs from the given distribution Distribution: 0.1875, 0.1875, Observed frequencies: 16, 20, 24, 36 Significance level 0.05 0.3125, 0.3125 Determine the null and alternative hypotheses. Choose the correct answer below. OA. H: The distribution of the variable differs from...
11. Testing Goodness-of-Fit with a Discrete Uniform: An observed frequency distribution is as follows: Number of successes Frequency 0 90 1 1 18 2 60 3 19 It is claimed that the above observed distribution comes from a Discrete Uniform Distribution. • What is the hypothesis of interest? • What are the expected counts? • What is the name and value of appropriate test statistic? • What is the pvalue ? What is your conclusion?
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...
QUESTION 5 In a goodness-of-fit test to see if a set of 100 values were randomly drawn from a normal distribution, the quartiles and median (i.e., the 0.25, 0.5, and 0.75 quantiles) for the normal distribution were used to determine intervals for sorting the data. What is the expected number of values that fall into each interval assuming the 100 numbers were drawn from the normal distribution? QUESTION 6 Consider again the goodness-of-fit described in the previous problem. Assuming that...
1 Normal 1 No Spac H Paragraph HOW "FIT" IS YOUR DATA SET? Problem l: How random are your numbers? In this activity, find a friend, a family member or a class mate and ask them to give y 100 random digits (ranging from O to 9) from their head without the use of a calculat computer or a printed random table numbers. (3 4 4 2 1 64 8 9 078 6 555 etc) Then make a frequency table...
Lab 12.1 Performing a Goodness of Fit Test This activity will involve of M&M's to the expected color distribution that is advertised by the manufacturer. Do you think the advertised color distribution is accurate? How can you decide? comparing the observed color distribution in a bag For this activity, you will need a bog of M&M's in the traditional colors (no holiday or special packs). 1. Open your bag of M&M's and count the number of M&M's. Number of M&M's...
12. The observed frequencies and calculated expected frequencles in parenthesis) of 200 students on their preference for a university health plan is shown Plan A 40(36) 20(24) Plan B 50(54) 40(36) No Preference 0(30) 20(20) Female Male Expected frequencies are in parenthesis. You are to do test of independence with the null hypothesis, Ho: The plans A, B, and no preference are independence of gender (male and female). a) Find the degree of freedom. 2 b) Find the critical value...
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