1) What is the difference in sample means ( 1 2 x − x ) of...
1) What is the difference in sample means ( 1 2 x − x ) of our original samples where Group #1 is “males” and Group #2 is “females”? (1 point)
2) What characteristics of the original samples make them NOT appropriate for use in a 2 sample t-test? (1 point)
3) What is the p-value you computed based on your randomization distribution and the alternative hypothesis in this task? (1 point)
4) Using your answer in #3 above, would you support a claim that the population average exercise hours per week for males is greater than the population average exercise hours per week for females, or would you fail to support that claim? Explain your reasoning and reference your p-value in your explanation for full credit. (2 points) You can use a significance level of α = .05 if you wish.
Homework Answers
A study on exercise habits used a random sample of 2,540 college students (1,220 females and...
A study on exercise habits used a random sample of 2,540 college students (1,220 females and 1,320 males). The study found the following: 818 of the females in the sample exercise on a regular basis. 924 of the males in the sample exercise on a regular basis. The average time that the 1742 students who exercise on a regular basis (818 + 924) spend exercising per week is 4.2 hours. What is the point estimate for the average amount of...
1. ANOVA is a statistical method for verifying the equality between some sample means b. a....
1. ANOVA is a statistical method for verifying the equality between some sample means b. a. some sample standard deviations c. some population standard deviations d some population means Salary information regarding male and female employees of a large company is shown below Sample Size Male (Pop. 1) Female (Pop. 2) 49 47 Sample Mean Salary (in $1,000) , Population Variance 2. The point estimate of the difference μ-μ, between the two population means is Y 7-44-3.0 3. The margin...
The owner of a local golf course wants to examine the difference between the average ages...
The owner of a local golf course wants to examine the difference between the average ages of males and females that play on the golf course. Specifically, he wants to test if the average age of males is greater than the average age of females. If the owner conducts a hypothesis test for two independent samples and calculates a p-value of 0.0095, what is the appropriate conclusion? Label males as group 1 and females as group 2. Question 15 options:...
In a survey of 230 males ages 20 to 24,44% were neither in school nor working....
In a survey of 230 males ages 20 to 24,44% were neither in school nor working. In a survey of 240 females ages 20 to 24, 46% were neither in school nor working. These samples are random and independent. At a = 0.10, can you support the claim that the proportion of males ages 20 to 24 who were neither in school nor working is less than the proportion of females ages 20 to 24 who were neither in school...
Does the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on...
Does the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on gender? You want to test the hypotheses that the amount absorbed by men (group 1) is different from the amount absorbed by women (group 2). A random sample of 167 male workers and 188 female workers showed an average lead absorption in the blood of 9.7 (SD = 0.975) and 9.62 (SD = 0.724), respectively (measured in micrograms/deciliter). Assuming that the population standard deviations...
please indicate all answers Horr In a random sample of males, it was found that 22...
please indicate all answers
Horr In a random sample of males, it was found that 22 write with their left hands and 221 do not. In a random sample of females, it was found that 67 write with their left hands and 458 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below. cem a. Test the claim using a...
Due in 2 hours, 57 minutes. Due Sun 05/03/2020 11:59 pm You wish to test the...
Due in 2 hours, 57 minutes. Due Sun 05/03/2020 11:59 pm You wish to test the following claim () at a significance level of a = 0.02. H: H: = 68.9 > 68.9 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 14 with mean M - 77.8 and a standard deviation of SD = 14.4. What is the p-value for this sample? (Report answer accurate...
The UGA Journalism Department is interested in determining if there is a significant difference in the...
The UGA Journalism Department is interested in determining if
there is a significant difference in the number of hours, on
average per week, that UGA males and UGA female students spend
reading any online or printed newspaper. Randomly selected students
at UGA were asked how many hours per week they read any online or
printed newspaper, their age, and gender. The 95% confidence
interval for reading newspapers on F - M is (-1.2, 1.2).
1) What would this interval let...
1) Based on a sample of 600 people, 33% owned cats The test statistic is: (to 2...
1) Based on a sample of 600 people, 33% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) 2) Based on a sample of 80 men, 30% owned cats Based on a sample of 60 women, 45% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) 3) Exercise 6.13 presents the results of a poll evaluating support for the health care public option plan in 2009. 70% of 819 Democrats and 42%...
The UGA Journalism Department is interested in determining if there is a significant difference in the number of hours,...
The UGA Journalism Department is interested in determining if
there is a significant difference in the number of hours, on
average per week, that UGA males and UGA female students spend
reading any online or printed newspaper. Randomly selected students
at UGA were asked how many hours per week they read any online or
printed newspaper, their age, and gender. The 95% confidence
interval for reading newspapers on F - M is (-1.5, 1.1).
1) What would this interval let...
1. ANOVA is a statistical method for verifying the equality between some sample means b. a. some sample standard deviations c. some population standard deviations d some population means Salary information regarding male and female employees of a large company is shown below Sample Size Male (Pop. 1) Female (Pop. 2) 49 47 Sample Mean Salary (in $1,000) , Population Variance 2. The point estimate of the difference μ-μ, between the two population means is Y 7-44-3.0 3. The margin...
In a survey of 230 males ages 20 to 24,44% were neither in school nor working. In a survey of 240 females ages 20 to 24, 46% were neither in school nor working. These samples are random and independent. At a = 0.10, can you support the claim that the proportion of males ages 20 to 24 who were neither in school nor working is less than the proportion of females ages 20 to 24 who were neither in school...
please indicate all answers
Horr In a random sample of males, it was found that 22 write with their left hands and 221 do not. In a random sample of females, it was found that 67 write with their left hands and 458 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below. cem a. Test the claim using a...
Due in 2 hours, 57 minutes. Due Sun 05/03/2020 11:59 pm You wish to test the following claim () at a significance level of a = 0.02. H: H: = 68.9 > 68.9 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 14 with mean M - 77.8 and a standard deviation of SD = 14.4. What is the p-value for this sample? (Report answer accurate...
The UGA Journalism Department is interested in determining if
there is a significant difference in the number of hours, on
average per week, that UGA males and UGA female students spend
reading any online or printed newspaper. Randomly selected students
at UGA were asked how many hours per week they read any online or
printed newspaper, their age, and gender. The 95% confidence
interval for reading newspapers on F - M is (-1.2, 1.2).
1) What would this interval let...
The UGA Journalism Department is interested in determining if
there is a significant difference in the number of hours, on
average per week, that UGA males and UGA female students spend
reading any online or printed newspaper. Randomly selected students
at UGA were asked how many hours per week they read any online or
printed newspaper, their age, and gender. The 95% confidence
interval for reading newspapers on F - M is (-1.5, 1.1).
1) What would this interval let...
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