Which of the following null hypotheses is used to test if five population proportions are the same? A. Ho: P1=P2=P3=P4=P5=0.25 B. Ho: P1=P2=P3=P4=0.25 C. Ho: P1=P2=P3=P4=0.20 D. Ho: P1=P2=P3=P4=P5=0.20
Option A
Option B
Option C
Option D
The maximum value of proportion is 1. Here we have to test for five population proportions.
so, if we split 1 into 5 equal part it becomes 0.2
So option D is correct.
Option D : H0: P1=P2=P3=P4=P5 =0.2
Which of the following null hypotheses is used to test if five population proportions are the...
The authors of a paper studied a random sample of 346 Twitter users. For each Twitter user in the sample, the tweets sent during a particular time period were analyzed and the Twitter user was classified into one of the following categories based on the type of messages they usually sent. Category Description IS Information sharing OC Opinions and complaints RT Random thoughts ME Me now (what I am doing now) O Other The accompanying table gives the observed counts...
Which of the following null hypotheses cannot be tested with a chi-squared test? O Ho: the two variables defining the contingency table are independent. O Ho: the population distribution is a normal distribution O Ho: the true category proportions are the same for all of the population ( Ho: the true population means are the same for all of the populations
Use the sample data below to test the hypotheses: H0: p1=p2=p3 H1: Not all population proportions are equal The calculated test statistic is 6.082 9.249 8.851 10.950 At 2.5% level of significance, the conclusion is fail to reject H0 No test No decision Reject H0
QUESTION 1 1)-2) Use the sample data below to test the hypotheses: HO: p1=p2=p3 H1: Not all population proportions are equal Response 1 2 3 Total Yes 46 16 68 130 No 44 44 82 170 Total 90 60 150 300 The calculated test statistic is 6.082 8.851 9.249 10.950 QUESTION 2 1)-2) Use the sample data below to test the hypotheses: HO: p1=p2=p3 H1: Not all population proportions are equal Response 1 2 3 Total Yes 46 16 68...
QUESTION 1 1)-2) Use the sample data below to test the hypotheses: HO: p1=p2=p3 H1: Not all population proportions are equal Response 1 2 3 Total Yes 46 16 68 130 No 44 44 82 170 Total 90 60 150 300 The calculated test statistic is 10.950 8.851 06.082 09.249 QUESTION 2 1)-2) Use the sample data below to test the hypotheses: HO: p1=p2=p3 H1: Not all population proportions are equal Response | 1 2 3 | Total Yes 46...
1)-2) Use the sample data below to test the hypotheses: HO: p1=p2=p3 H1: Not all population proportions are equal Response 1 2 3 Total Yes 46 16 68 130 No 44 44 82 170 Total 90 60 150 300 At 2.5% level of significance, the conclusion is fail to reject HO No test No decision O Reject Ho
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...
Birds use color to select and avoid certain
types of food. The authors of a particular article studied the
pecking behavior of 1-day-old bobwhites. In an area painted white,
they inserted four pins with different colored heads. The color of
the pin chosen on the bird's first peck was noted for each of 33
bobwhites, resulting in the accompanying table. Color First Peck
Frequency Blue 15 Green 8 Yellow 7 Red 3 Do these data provide
evidence of a color...
Conduct a test at the a = 0.10 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume the samples were obtained independently from a large population using simple random sampling. Test whether 21 > P2. The sample data are x1 = 127, ny = 241, X2 = 131, and n2 = 318. (a) Choose the correct null and alternative hypotheses below. O A. Ho: P1 = P2 versus Hy:...
Consider the following competing hypotheses and accompanying sample data. (You may find it useful to reference the a table: z table or ttable) He: P1 - P2 = 0.20 HA: P1 - P20.20 25 points *1 = 126 y = 243 X2 = 125 = 480 8 03.06.08 a. Calculate the value of the test statistic. (Round Intermediate calculations to at least 4 decimal places and final answer decimal places.) eBook Test statistic References b. Find the p-value. 0.01 s...