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2. The average earnings of male...
Problem 2" (20%) Biologists have theorized that male monarch butterflies have, on average, a larger thorax...
Problem 2" (20%) Biologists have theorized that male monarch butterflies have, on average, a larger thorax (body) than do females. Sample of butterflies were collected and weights were collected yielded the following table of summary data. Male (sample 1) 17 Female (sample 2) 28 75.7 8.4 Mean 72.5 St. Dev Stand. Error 1.42 2.04 The 95% confidence interval of the difference of means is computed as (-1.8, 8.21). Can we reject the following hypothesis:Do not compute iust-Yes No and reasons)...
please answer by steps so i can understand, thank you in advance QUESTION 7 The average...
please answer by steps so i can understand, thank you in
advance
QUESTION 7 The average moviegoer sees 8.5 movies a year. A moviegoer is defined as a person who sees at least one movie in a theater in a 12-month period. A random sample of 40 moviegoers from a large university revealed that the average number of movies seen per person was 9.6. The population standard deviation is 3.2 movies. At the 0.05 level of significance, can it be...
please help with finding the test statistic, p value and confidence interval. please show work Male...
please help with finding the test statistic, p value and confidence
interval. please show work
Male BMI Female BM HA P2 Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. 272991 8.358284 24.7416 4.878176...
Question 3 Experience has shown that Male applicants to Virginia Tech score on average 3.5 points...
Question 3 Experience has shown that Male applicants to Virginia Tech score on average 3.5 points better on the science placement than Female applicants. Following a random sample of these years freshman applications for admission resulted in the data below: Gender Males Females Sample Size 25 35 Mean Score 71.5 71.2 Standard deviation 10.3 11.2 A) Is there sufficient evidence that males score significantly better at the alpha-0.05 level. (10 points) For the next four questions state which inference procedure...
Do women feel differently from men when it comes to tax rates? One question on a...
Do women feel differently from men when it comes to tax rates? One question on a survey of randomly selected adults asked, "What percent of income do you believe individuals should pay in income tax?" Complete parts a) through c). Click the icon to view the survey results. a) Draw side-by-side boxplots of tax rates by gender. Choose the correct graph below. Survey Results OA. ОВ. A 10 20 30 40 10 20 30 40 M Oc OD 40 40...
i've been having a hard time, i appreciate your help, thank you so much in advance!...
i've been having a hard time, i appreciate your help, thank
you so much in advance! can you please circle the answers thank
you
1
2
3
(1 point) It is necessary for an automobile producer to estimate the number of miles per gallon achieved by its cars. Suppose that the sample mean for a random sample of 150 cars is 29.1 miles and assume the standard deviation is 2.4 miles. Now suppose the car producer wants to test the...
hey guy, i need your help in this question , thank you soooo much! More Info...
hey guy, i need your help in this question , thank you soooo
much!
More Info Variable Definitions Variable ??? College Female Age Ntheast Midwest South West Definition Average hourly earnings (in 1998 dollars) Binary variable (1 if college, 0 if high school) Binary variable (1 if female, 0 if male). Age (in years) Binary variable (1 if RegionNortheast, 0 otherwise) Binary variable (1 if Region Midwest, 0 otherwise) Binary variable (1 if Region South, 0 otherwise) Binary variable (1...
Hi, please may I have help with question 10. Thank you! 10. A weather person claims...
Hi, please may I have help with question 10. Thank you!
10. A weather person claims that the average of the highest temps in the U.S. is 98°. A sample of 50 cities is selected and the highest temps are shown below. At a 0.10, can the claim be rejected? Assume o 7.71 97 96 101 98 99 97 99 91 100 98 94 80 87 95 99 98 108 96 93 80 96 95 88 88 98 99 97...
top Suppose that a researcher, using wage data on 230 randomly selected male workers and 258 fermale workers, e...
top
Suppose that a researcher, using wage data on 230 randomly selected male workers and 258 fermale workers, estimates the OLS regression 4 Wage 11.518 +1.950 x Male, R 0,04, SER = 3.9, (0.2116) (0.3312) where Wage is measured in dollars per hour and Male is a binary variable that is equal to 1 if the person is a male and 0if the person is a female. Define the wage gender gap as the difference in mean earnings between men...
Help with this problem , please and thank you ! QUESTION 2 A quality engineer performs...
Help with this problem , please and thank you !
QUESTION 2 A quality engineer performs a one-sample t test on a population mean. The p value for the test is 0.025. Which conclusion should the engineer state? There is a 97.5% probability that Ho is false. Reject Ho, p value is less than 0.05 Accept Ho, p value is less than 0.025 0 There is a 2.5% chance of Ho being wrong. 0
Problem 2" (20%) Biologists have theorized that male monarch butterflies have, on average, a larger thorax (body) than do females. Sample of butterflies were collected and weights were collected yielded the following table of summary data. Male (sample 1) 17 Female (sample 2) 28 75.7 8.4 Mean 72.5 St. Dev Stand. Error 1.42 2.04 The 95% confidence interval of the difference of means is computed as (-1.8, 8.21). Can we reject the following hypothesis:Do not compute iust-Yes No and reasons)...
please answer by steps so i can understand, thank you in
advance
QUESTION 7 The average moviegoer sees 8.5 movies a year. A moviegoer is defined as a person who sees at least one movie in a theater in a 12-month period. A random sample of 40 moviegoers from a large university revealed that the average number of movies seen per person was 9.6. The population standard deviation is 3.2 movies. At the 0.05 level of significance, can it be...
please help with finding the test statistic, p value and confidence
interval. please show work
Male BMI Female BM HA P2 Given in the table are the BMI statistics for random samples of men and women. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. 272991 8.358284 24.7416 4.878176...
Question 3 Experience has shown that Male applicants to Virginia Tech score on average 3.5 points better on the science placement than Female applicants. Following a random sample of these years freshman applications for admission resulted in the data below: Gender Males Females Sample Size 25 35 Mean Score 71.5 71.2 Standard deviation 10.3 11.2 A) Is there sufficient evidence that males score significantly better at the alpha-0.05 level. (10 points) For the next four questions state which inference procedure...
Do women feel differently from men when it comes to tax rates? One question on a survey of randomly selected adults asked, "What percent of income do you believe individuals should pay in income tax?" Complete parts a) through c). Click the icon to view the survey results. a) Draw side-by-side boxplots of tax rates by gender. Choose the correct graph below. Survey Results OA. ОВ. A 10 20 30 40 10 20 30 40 M Oc OD 40 40...
i've been having a hard time, i appreciate your help, thank
you so much in advance! can you please circle the answers thank
you
1
2
3
(1 point) It is necessary for an automobile producer to estimate the number of miles per gallon achieved by its cars. Suppose that the sample mean for a random sample of 150 cars is 29.1 miles and assume the standard deviation is 2.4 miles. Now suppose the car producer wants to test the...
hey guy, i need your help in this question , thank you soooo
much!
More Info Variable Definitions Variable ??? College Female Age Ntheast Midwest South West Definition Average hourly earnings (in 1998 dollars) Binary variable (1 if college, 0 if high school) Binary variable (1 if female, 0 if male). Age (in years) Binary variable (1 if RegionNortheast, 0 otherwise) Binary variable (1 if Region Midwest, 0 otherwise) Binary variable (1 if Region South, 0 otherwise) Binary variable (1...
Hi, please may I have help with question 10. Thank you!
10. A weather person claims that the average of the highest temps in the U.S. is 98°. A sample of 50 cities is selected and the highest temps are shown below. At a 0.10, can the claim be rejected? Assume o 7.71 97 96 101 98 99 97 99 91 100 98 94 80 87 95 99 98 108 96 93 80 96 95 88 88 98 99 97...
top
Suppose that a researcher, using wage data on 230 randomly selected male workers and 258 fermale workers, estimates the OLS regression 4 Wage 11.518 +1.950 x Male, R 0,04, SER = 3.9, (0.2116) (0.3312) where Wage is measured in dollars per hour and Male is a binary variable that is equal to 1 if the person is a male and 0if the person is a female. Define the wage gender gap as the difference in mean earnings between men...
Help with this problem , please and thank you !
QUESTION 2 A quality engineer performs a one-sample t test on a population mean. The p value for the test is 0.025. Which conclusion should the engineer state? There is a 97.5% probability that Ho is false. Reject Ho, p value is less than 0.05 Accept Ho, p value is less than 0.025 0 There is a 2.5% chance of Ho being wrong. 0
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