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MATH 225N Week 5 Bundle: Homework Assignments, Lab Assignment, Discussion
MATH 225N Week 5 Bundle: Homework Assignments, Lab Assignment, Discussion
[Show more]MATH 225N Week 5 Bundle: Homework Assignments, Lab Assignment, Discussion
[Show more]Week 5 Assignment: Central Limit Theorem for 
Means 
1. Question 
A family of statisticians is trying to decide if they can afford for their child to play 
youth baseball. The cost of joining a team is normally distributed with a mean of 
$750 and a standard deviation of $185 . If a sample of 40 tea...
Preview 3 out of 17 pages
Add to cartWeek 5 Assignment: Central Limit Theorem for 
Means 
1. Question 
A family of statisticians is trying to decide if they can afford for their child to play 
youth baseball. The cost of joining a team is normally distributed with a mean of 
$750 and a standard deviation of $185 . If a sample of 40 tea...
A statistics student is trying to decide whether she should take a gamble and play 
Bingo. The average Bingo player earns $9 per game, distributed normally, with a 
population standard deviation of $8 . If a sample of 25 Bingo players are selected 
at random from the population, select the expected ...
Preview 2 out of 14 pages
Add to cartA statistics student is trying to decide whether she should take a gamble and play 
Bingo. The average Bingo player earns $9 per game, distributed normally, with a 
population standard deviation of $8 . If a sample of 25 Bingo players are selected 
at random from the population, select the expected ...
Central Limit Theorem for Proportions 
Week 5 Assignment: 
1. A dental student is conducting a study on the number of people who visit 
their dentist regularly. Of the 520 people surveyed, 312 indicated that they 
had visited their dentist within the past year. 
Find the population proportion, as we...
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Add to cartCentral Limit Theorem for Proportions 
Week 5 Assignment: 
1. A dental student is conducting a study on the number of people who visit 
their dentist regularly. Of the 520 people surveyed, 312 indicated that they 
had visited their dentist within the past year. 
Find the population proportion, as we...
Understanding Normal Distribution: week #5 
1. Lexie averages 149 points per bowling game with a standard deviation of 14 points. 
Suppose Lexie's points per bowling game are normally distributed. Let X= the number of 
points per bowling game. Then X∼N(149,14). 
Suppose Lexie scores 186 points in...
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Add to cartUnderstanding Normal Distribution: week #5 
1. Lexie averages 149 points per bowling game with a standard deviation of 14 points. 
Suppose Lexie's points per bowling game are normally distributed. Let X= the number of 
points per bowling game. Then X∼N(149,14). 
Suppose Lexie scores 186 points in...
Step 1: Survey or measure 10 people to find their heights. Determine the mean and standard 
deviation for this group by using the Week 3 Excel spreadsheet. Post a screen shot of the portion 
of the spreadsheet that helped you determine these values. How does your height compare to the 
mean (average...
Preview 1 out of 4 pages
Add to cartStep 1: Survey or measure 10 people to find their heights. Determine the mean and standard 
deviation for this group by using the Week 3 Excel spreadsheet. Post a screen shot of the portion 
of the spreadsheet that helped you determine these values. How does your height compare to the 
mean (average...
Question 
Sugar canes have lengths, X , that are normally distributed with mean 365.45 
centimeters and standard deviation 4.9 centimeters. What is the probability of the length 
of a randomly selected cane being between 360 and 370 centimeters? 
 Round your answer to four decimal places. 
The me...
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Add to cartQuestion 
Sugar canes have lengths, X , that are normally distributed with mean 365.45 
centimeters and standard deviation 4.9 centimeters. What is the probability of the length 
of a randomly selected cane being between 360 and 370 centimeters? 
 Round your answer to four decimal places. 
The me...
Understanding the Empirical Rule :week5 
1. A random sample of CO2 levels in a school has a sample mean of x¯=598.4 ppm and 
sample standard deviation of s=86.7 ppm. Use the Empirical Rule to determine the 
approximate percentage of CO2 levels that lie between 338.3 and 858.5 ppm. 
To use the Empir...
Preview 2 out of 6 pages
Add to cartUnderstanding the Empirical Rule :week5 
1. A random sample of CO2 levels in a school has a sample mean of x¯=598.4 ppm and 
sample standard deviation of s=86.7 ppm. Use the Empirical Rule to determine the 
approximate percentage of CO2 levels that lie between 338.3 and 858.5 ppm. 
To use the Empir...
Week 5 Assignment: Understanding Normal Distribution 
Question 
John averages 58 words per minute on a typing test with a standard deviation 
of 11 words per minute. Suppose John's words per minute on a typing test are 
normally distributed. Let X= the number of words per minute on a typing test. 
...
Preview 1 out of 4 pages
Add to cartWeek 5 Assignment: Understanding Normal Distribution 
Question 
John averages 58 words per minute on a typing test with a standard deviation 
of 11 words per minute. Suppose John's words per minute on a typing test are 
normally distributed. Let X= the number of words per minute on a typing test. 
...
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