Homework Answers
A manager is trying to figure out which of her top 2 salespeople is the best,...
A manager is trying to figure out which of her top 2 salespeople is the best, as measured by average number of sales made per week. Thus, she’s set up the following hypothesis test that they are equally as good, & if she can reject that hypothesis, she will conclude that the salesperson with the highest average weekly sales (Salesperson #2) is the best. She’s looked back at all the weeks worked for both employees to calculate the statistics below....
A humanities professor assigns letter grades on a test according to the following scheme. A: Top...
A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below the top 12% and above the bottom 63% C:Scores below the top 37% and above the bottom 16% D: Scores below the top 84% and above the bottom 8 % F: Bottom 8 % of scores Scores on the test are normally distributed with a mean of 80.1 and a standard deviation of 7.2. Find the minimum score...
X 9.9.43 Question Help A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet...
X 9.9.43 Question Help A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 16 of each brand. The tires are run until they wear out. The results are given in the table below. Compute a 95% confidence interval for u. He assuming the populations to be approximately normally distributed. You may not assume that the...
please help with all steps and show all work. I'm trying to figure this out and...
please help with all steps and show all work. I'm
trying to figure this out and I can't seem to get it. right answer
will get high rating!!!
Fn Lock Insert Prt Sc Delete % ^ & 5 4) An educator believes that new reading activities in the classroom will help elementary school pupils improve their reading ability. She arranges for a third grade class of 10 students to follow these activities for an 8-week period. A control classroom of...
i beed help with part b. thanks! Assume that both populations are normally distributed (a) Test...
i beed help with part b. thanks!
Assume that both populations are normally distributed (a) Test whether u, #2 at the a 0.01 level of Population 1 13 Population 2 13 16.1 12.6 significance for the given sample data (b) Construct a 99% confidence interval about 1 2 X 3.5 4.6 different means B. Do not reject Ho, there is not sufficient evidence to conclude that the two populations have different means. C Do not reject Ho. there is sufficient...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This Test 19 pls p E Question Help Use technology to help you test the claim about the population mean, u, at the given level of normally distributed. Claim: μ > 11 70: α:0.07; σ 203 39. Sample statistics: x. 1194 38, n-250 Identify the null and alternative hypotheses. Choose the correct answer below O A. Ho:H> 1194.38 Ha Hs 119438 O B. Hous!19438 Ha...
QUESTION 13 A sample of 16 cookies is taken to test the claim that each cookie...
QUESTION 13 A sample of 16 cookies is taken to test the claim that each cookie contains at least 9 chocolate chips. The average number of chocolate chips per cookie in the sample was 7.875. The standard deviation of the population is 2. Assume the distribution of the population is normal. Let u denote the average number of chocolate chips in all the cookies. The hypothesis to test the claim is: H: 129 Hu<9 The p-value for the test statistics...
answer all questions and ill leave a like :) part 1 a) find the sample mean...
answer all questions and ill leave a like :)
part 1
a) find the sample mean
b) find the sample standard deviation
c) construct a 99% confidence interval for the population mean
u
part 2
just answer the second part
part 3
just answer the second part
part 4
part 5
part 6
find answers a-c
8 of 10 (0 complete) HW Score: 0%, 0 of 10 pts Score: 0 of 1 pt 6.2.26-T Question Help The grade point averages...
Many retailers are trying to figure out whether consumers care about "green" products, and if they...
Many retailers are trying to figure out whether consumers care about "green" products, and if they would pay more for products that are advertised as being green. One retailer decided to conduct a consumer study in a very large major metropolitan area in which it had many stores. The retailer devised a label scheme that ranked products on a scale of 1 to 5, where 1 = least environmentally friendly and 5 = most environmentally friendly. This ranking was added...
I got the first 2 parts, but I cant figure out the percentage of men that...
I got the first 2 parts, but I cant figure out the
percentage of men that fit this table. please help.
Scbre: 92.94 70, T5.... Question Help out A common design requirement is that an environment must fit the range of people who fall between the 5h percentile for women and the 95th percentile for men. In designing an assembly work table, the sitting knee height must be considered, which is the distance from the bottom of the feet to...
A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below the top 12% and above the bottom 63% C:Scores below the top 37% and above the bottom 16% D: Scores below the top 84% and above the bottom 8 % F: Bottom 8 % of scores Scores on the test are normally distributed with a mean of 80.1 and a standard deviation of 7.2. Find the minimum score...
X 9.9.43 Question Help A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 16 of each brand. The tires are run until they wear out. The results are given in the table below. Compute a 95% confidence interval for u. He assuming the populations to be approximately normally distributed. You may not assume that the...
please help with all steps and show all work. I'm
trying to figure this out and I can't seem to get it. right answer
will get high rating!!!
Fn Lock Insert Prt Sc Delete % ^ & 5 4) An educator believes that new reading activities in the classroom will help elementary school pupils improve their reading ability. She arranges for a third grade class of 10 students to follow these activities for an 8-week period. A control classroom of...
i beed help with part b. thanks!
Assume that both populations are normally distributed (a) Test whether u, #2 at the a 0.01 level of Population 1 13 Population 2 13 16.1 12.6 significance for the given sample data (b) Construct a 99% confidence interval about 1 2 X 3.5 4.6 different means B. Do not reject Ho, there is not sufficient evidence to conclude that the two populations have different means. C Do not reject Ho. there is sufficient...
Test: Exam#2 Out Submit Test isti This Question: 1 pt 9 of 19 (13 complete) This Test 19 pls p E Question Help Use technology to help you test the claim about the population mean, u, at the given level of normally distributed. Claim: μ > 11 70: α:0.07; σ 203 39. Sample statistics: x. 1194 38, n-250 Identify the null and alternative hypotheses. Choose the correct answer below O A. Ho:H> 1194.38 Ha Hs 119438 O B. Hous!19438 Ha...
QUESTION 13 A sample of 16 cookies is taken to test the claim that each cookie contains at least 9 chocolate chips. The average number of chocolate chips per cookie in the sample was 7.875. The standard deviation of the population is 2. Assume the distribution of the population is normal. Let u denote the average number of chocolate chips in all the cookies. The hypothesis to test the claim is: H: 129 Hu<9 The p-value for the test statistics...
answer all questions and ill leave a like :)
part 1
a) find the sample mean
b) find the sample standard deviation
c) construct a 99% confidence interval for the population mean
u
part 2
just answer the second part
part 3
just answer the second part
part 4
part 5
part 6
find answers a-c
8 of 10 (0 complete) HW Score: 0%, 0 of 10 pts Score: 0 of 1 pt 6.2.26-T Question Help The grade point averages...
Many retailers are trying to figure out whether consumers care about "green" products, and if they would pay more for products that are advertised as being green. One retailer decided to conduct a consumer study in a very large major metropolitan area in which it had many stores. The retailer devised a label scheme that ranked products on a scale of 1 to 5, where 1 = least environmentally friendly and 5 = most environmentally friendly. This ranking was added...
I got the first 2 parts, but I cant figure out the
percentage of men that fit this table. please help.
Scbre: 92.94 70, T5.... Question Help out A common design requirement is that an environment must fit the range of people who fall between the 5h percentile for women and the 95th percentile for men. In designing an assembly work table, the sitting knee height must be considered, which is the distance from the bottom of the feet to...
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