Question

In: Statistics and Probability

Use the table below to ascertain whether there is a significant difference in the mean of...

Use the table below to ascertain whether there is a significant difference in the mean of the following voting result in two geo political zones in Nigeria during the 2019 general elections NORTH WEST ; MEAN ; 520, VARIANCE ; 35.25 NUMBER OF VOTERS ; 350 AND. SOUTH WEST ;MEAN ; 650 VARIANCE ;305 NUMBER OF VOTERS ; 450

Solutions

Expert Solution

Let denote the mean of North-West and South-West respectively.

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Use an independent-measures t test with α = .05 to determine whether there is a significant mean difference between the two treatments.
  N =16 G = 120 ΣX² = 1036 The following scores are from an independent-measure study comparing two treatment conditions. Treatment I II 10 7 8 4 7 9 9 3 13 7 7 6 6 10 12 2 Use an independent-measures t test with α = .05 to determine whether there is a significant mean difference between the two treatments.  Use an ANOVA with α = .05 to determine whether there is a significant mean difference between the...
What is the p value for the dataset below? determine whether a significant difference exists among...
What is the p value for the dataset below? determine whether a significant difference exists among groups A, B, and C? Use the format 0.999. Chemical A Chemical B Chemical C 112 121 84 103 125 96 98 98 105 122 100 89 130 95 102 107 122 98 105 121 105 120 115 89 100 128 100 124 130 90 Referring to the results from your analysis of chemicals A, B, and C; which pair of groups had the...
Is there a significant difference at a = 0.05 in the mean heights in feet of...
Is there a significant difference at a = 0.05 in the mean heights in feet of cliffs in South America and the ones in Canada? The data are shown.          South America Canada 487 1236 1377 714 725 964 473 1312 984 1137 320 830 900 345 359 721 1890
Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between...
Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between the related populations represented by the data below. Assume a 5% level of significance and (differences = before - after). Before    After 5.6        6.4 1.3        1.5 4.7        4.6 3.8        4.3 2.4        2.1 5.5        6.0 5.1        5.2 4.6        4.5 3.7        4.5 What is the value of T-?   What is the value of T+?   What is the test statistic, T?   Using the table of Critical Values, what is the critical value for this study?
A researcher wants to determine if there is a significant difference in the mean cost of...
A researcher wants to determine if there is a significant difference in the mean cost of a meal in the world's most expensive restaurants. A survey of 100 people in the most expensive restaurant in the world in Tokyo, Japan produced an average cost per person of $277 and a standard deviation of $35. A survey of 100 people in the second most expensive restaurant located in Toronto, Canada produced an average cost per person of $213 with a standard...
in order to determine whether or not there is a significant difference between the hourly wages...
in order to determine whether or not there is a significant difference between the hourly wages of the two companies the following data has been calculated.    company A company B sample size    80    60 sample mean $16.75 $16.25 standard deviation    $1.00    $0.95 A) what is the point estimate for the difference between the two means? B) the standard error of x1 - x2 is C)what is the 95% confidence interval for the difference between the...
A stock market investor is interested in determining whether there is a significant difference in the...
A stock market investor is interested in determining whether there is a significant difference in the P/E (price to earnings) ratio for companies from one year to the next. Six companies are randomly selected and their P/E ratios for Year 1 and Year 2 are recorded. Are the P/E ratios for Year 1 greater than for Year 2? Use a 10% level of significance. Company c Year 1 16 29 36 23 12 19 Year 2 13 25 31 20...
A stock market investor is interested in determining whether there is a significant difference in the...
A stock market investor is interested in determining whether there is a significant difference in the P/E (price to earnings) ratio for companies from one year to the next. Six companies are randomly selected and their P/E ratios for Year 1 and Year 2 are recorded. Are the P/E ratios for Year 1 greater than for Year 2? Use a 10% level of significance. Company c Year 1 16 29 36 23 12 19 Year 2 13 25 31 20...
A businesswomen was interested in determining whether there is a significant difference in the average monthly...
A businesswomen was interested in determining whether there is a significant difference in the average monthly cost per child for childcare outside the home between state supported facilities and privately owned facilities. Two independent random samples were selected yielding the following information: State Supported Facilities Privately Owned facilities Sample Size 64 64 Sample Mean 725 675 Standard Deviation 95 80 Find a 90% confidence interval for the true difference in average monthly cost of the childcare.    Based on the...
Waterfall Heights Is there a significant difference at =α0.10 in the mean heights in feet of...
Waterfall Heights Is there a significant difference at =α0.10 in the mean heights in feet of waterfalls in Europe and the ones in Asia? The data are shown. Use the critical value method with tables. Europe Asia 487 1246 614 320 470 345 350 964 900 722 830 Send data to Excel Use μ1 for the mean height of waterfalls in Europe. Assume the variables are normally distributed and the variances are unequal. Find the critical value(s). Round the answer(s)...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT