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Provide a word document that answers the following questions as concisely as possible (half a page...
Nintendo wants to know whether MarioKart is popular amongst students who have access to gaming devices....
Nintendo wants to know whether MarioKart is popular amongst students who have access to gaming devices. A manager collected a random sample of 1,000 students with access to gaming devices. He reports that 35% of students in the sample like MarioKart. He correctly reports that the margin of error for a confidence interval estimate for the proportion of students (with access to gaming devices) who like MarioKart is 3 percentage points at a 95% confidence level. i) State the confidence...
A nationwide school examination in history included several multiple-choice questions. Each question had 4 possible answers,...
A nationwide school examination in history included several multiple-choice questions. Each question had 4 possible answers, only one of which was correct. In a sample of 1000 students from more than 100000 students who participated in the test it was found that 38% answered the first multiple- choice question correctly. Assume that if a student knew the answer to this question then with 100 percent chance he chose the right answer. If a student didn't know the answer, he tried...
Long answer question [7 marks] The university would like to conduct a study to estimate the...
Long answer question [7 marks] The university would like to conduct a study to estimate the true proportion of all university students who have student loans. According to the study, in a random sample of 215 university students, 86 have student loans. (a) Construct a 95% confidence interval for estimating the true proportion of all university students who have student loans (2 marks) (b) Provide an interpretation of the confidence interval in part (a). (1mark) (c) Conduct an appropriate hypothesis...
Question 5 (1 point) In a sample of 40 Major League Baseball (MLB) players, 16 of...
Question 5 (1 point) In a sample of 40 Major League Baseball (MLB) players, 16 of them are left handed hitters. For a 95% confidence interval for the proportion of MLB players that bat left handed, what is the margin of error? Question 5 options: 1) 0.0775 2) 0.0240 3) 0.1270 4) 0.1518 5) 0.0118 Question 6 (1 point) Not all Walmart stores carry the same merchandise. In fact, in an audit of 1111 random stores, only 283 carried snowsuits...
3 Construct a 90% confidence interval for the following random sample of Lucas Barrett's golf scores...
3 Construct a 90% confidence interval for the following random sample of Lucas Barrett's golf scores for a particular golf course he played so that he can figure out his true (population) aver 95 92 95 99 92 84 95 94 95 86 (hint: Use T-distribution table. Formula Interval estimate of a population mean when stan age score for the dared deviation is unknown) 4 The auto industry relies heavily on 0% financing to entice customers to purchase cars. In...
3) A credit card company wants to find out how much, on average, was charged by...
3) A credit card company wants to find out how much, on average, was charged by its card holders last month. The company took a random sample of 100 card holders. An analyst reports that in this study, the average amount charged by card holders in the sample was $1,500 per month. She also reports that based on the information in this study, a 95% confidence interval for the average amount charged by card holders was $1,300 to $1,700 per...
Height 180 170 160 150 140 There are no severe outliers within height. 2. Produce the 5-number su...
Can I get help for questions 6,7,11,12,13,14,15,16,17,18 and
20.
Height 180 170 160 150 140 There are no severe outliers within height. 2. Produce the 5-number summary for Height using the filtered sample. Minimum Value: 140 Q1: 153 Median: 162 Q3: 169 Maximum Value: 186 3. Provide the Normal QQ plot for your sample with the outliers removed Do you think the plot provides evidence for normality? Looking at the plot, I do believe that this does provide evidence for...
12 of 13 ID: MST.CI.CIP.01.0030.STAT301 [1 point] A statistics lecturer poses the following question to her...
12 of 13 ID: MST.CI.CIP.01.0030.STAT301 [1 point] A statistics lecturer poses the following question to her students as homework: 'Suppose I collected a sample and calculated the sample proportion. If I construct a 90% confidence interval for the population proportion and a 95% confidence interval for the population proportion, which of these intervals will be wider?' Three students provide their answers as follows: Tim: 'The 90% confidence interval will be wider.' Trevor: 'The 95% confidence interval will be wider.' Tracy:...
I am looking for help with the following question: In order to test whether students in...
I am looking for help with the following question: In order to test whether students in a large State University have a certain genetic trait, an elaborate instrument has to be set up but the cost of testing additional subjects is not that expensive once the instrument is set up. From last year’s data, the proportion of students having that genetic trait was 0.28. To estimate this year’s proportion to within 0.02 by a 95% confidence interval, how many students...
GMU officials are trying to determine if they are using the correct number of campus shuttles...
GMU officials are trying to determine if they are using the correct number of campus shuttles for the number of students who use them. If the proportion of students who use the shuttles is significantly different from 0.28, the officials believe they will have to either remove or add a shuttle to the fleet. In a random sample of 444 people taken from the population of all individuals associated with GMU (including faculty, staff, and students) it was discovered that...
A nationwide school examination in history included several multiple-choice questions. Each question had 4 possible answers, only one of which was correct. In a sample of 1000 students from more than 100000 students who participated in the test it was found that 38% answered the first multiple- choice question correctly. Assume that if a student knew the answer to this question then with 100 percent chance he chose the right answer. If a student didn't know the answer, he tried...
Long answer question [7 marks] The university would like to conduct a study to estimate the true proportion of all university students who have student loans. According to the study, in a random sample of 215 university students, 86 have student loans. (a) Construct a 95% confidence interval for estimating the true proportion of all university students who have student loans (2 marks) (b) Provide an interpretation of the confidence interval in part (a). (1mark) (c) Conduct an appropriate hypothesis...
3 Construct a 90% confidence interval for the following random sample of Lucas Barrett's golf scores for a particular golf course he played so that he can figure out his true (population) aver 95 92 95 99 92 84 95 94 95 86 (hint: Use T-distribution table. Formula Interval estimate of a population mean when stan age score for the dared deviation is unknown) 4 The auto industry relies heavily on 0% financing to entice customers to purchase cars. In...
Can I get help for questions 6,7,11,12,13,14,15,16,17,18 and
20.
Height 180 170 160 150 140 There are no severe outliers within height. 2. Produce the 5-number summary for Height using the filtered sample. Minimum Value: 140 Q1: 153 Median: 162 Q3: 169 Maximum Value: 186 3. Provide the Normal QQ plot for your sample with the outliers removed Do you think the plot provides evidence for normality? Looking at the plot, I do believe that this does provide evidence for...
12 of 13 ID: MST.CI.CIP.01.0030.STAT301 [1 point] A statistics lecturer poses the following question to her students as homework: 'Suppose I collected a sample and calculated the sample proportion. If I construct a 90% confidence interval for the population proportion and a 95% confidence interval for the population proportion, which of these intervals will be wider?' Three students provide their answers as follows: Tim: 'The 90% confidence interval will be wider.' Trevor: 'The 95% confidence interval will be wider.' Tracy:...
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