The Hypotheses are:
Ho: The distribution of the given variable is same as the given distribution
Ha: The distribution of the variable is different from the given distribution
The Chi-square value is calculated using the tabulated form as
The Chi-square value is 2.844
and the P-value associated with chi-square value is
E. P>0.1
Conclusion:
No, because there is not sufficient evidence to reject the null hypothesis.
P-value computed using the Chi-square table shown below as
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...
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:...
please provide a detailed answer, thank you! You are conducting a Goodness of Fit hypothesis test for the claim that the population data values are not distributed as follows: PA = 0.1; PB = 0.4; Pc = 0.3; pp = 0.2 Give all answers as decimals rounded to 3 places after the decimal point, if necessary. (a) What are the hypotheses for this test? OH:Pa = 0.1, PB = 0.4, pc = 0.3, pp = 0.2 H: all of these...
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...
Decide whether the normal sampling distribution can be used. If it can be used test the claim about the population proportion p at the given level of significance α using the given sample statistics. Claim: p < 0.12; α-0.10; Sample statistics: p-0.08, n-25 Can the normal sampling distribution be used? O A. No, because np is less than 5. O B. Yes, because pq is greater than α = 0.10 C. No, because nq is less than 5. O D....
Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion p at the given level of significance c using the given sample statistics Claim; p<0.14; a =0.05: Sample statistics: p=0.12, n = 25 Can the normal sampling distribution be used? O A. No, because np is less than 5. OB. Yes, because pq is greater than a = 0.05. OC. Yes, because both np and nq are greater than...
A random sample of size n= 15 obtained from a population that is normally distributed results in a sample mean of 45.8 and sample standard deviation 12.2. An independent sample of size n = 20 obtained from a population that is normally distributed results in a sample mean of 51.9 and sample standard deviation 14.6. Does this constitute sufficient evidence to conclude that the population means differ at the a = 0.05 level of significance? Click here to view the...
Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion p at the given level of significance a using the given sample statistics. Claim; p<0.09; a = 0.05; Sample statistics : P = 0.08, n = 25 Can the normal sampling distribution be used? O A. No, because ng is less than 5. O B. Yes, because pq is greater than a = 0.05. O C. No, because np...
1. A researcher intends to use a Chi2 test for Goodness of Fit to determine whether there is any preference between 10 brands of cookies. What is the critical Chi2 value for a sample of n = 300 participants and p < .01? A. 20.48 B. 11.07 C. 16.92 D. 18.31 E. 21.67 2. A researcher conducted a study on a sample of n = 80 undergraduates to evaluate preferences among students for four different textbooks for the Introduction to...
The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories and variable Y has two categories. Use the table to complete parts (a) and (b) below. Y1 X1 X3 32 45 49 (32.72) (47.34) (45.94) 15 23 17 (14.28) 20.66) (20.06) Y2 (a) Compute the value of the chi-square test statistic. x=(Round to three decimal places as needed.) (b) Test the hypothesis that X...
Decide whether the normal sampling distribution can be used. It can be used, test the dam about the population proportion p at the given level of significance a using the given sample statistics Claim p 0.26 0.05, Sample statistics: p=0.22, n = 100 Can the normal sampling distribution be used? O A No, because ng is less than 5. OB. Yes, because both np and ng are greater than or equal to 5. OC. No, because np is less than...