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Graded Assignment
Semester Test, Part 2
(8 points)
1. A printer can print 40 pages in 1.6 minutes.
Score
a. Write and solve a proportion to find the number of pages that the printer
can print in 5 minutes. Show your work.
b. Lana wants to use the printer to print 150 pages. Find the time, in minutes, it will take to
print 150 pages. Show your work.
Answer:
2. The population of fish in Lake Elson has been steadily decreasing. The graph shows some
data about the number of fish in the lake over time.
a. Find a reasonable estimate of the number of fish in July. Explain your answer.
b. Suppose the pattern continues. Find a reasonable estimate of the number of fish in
December. Explain your answer.
c.
Answer:
If the pattern continues, in what month will there be no fish in Lake Elson? Explain your
answer.
3. A garden is going to be built in the city park. The garden region is shown below.
a.
A short fence will be built around the perimeter of the garden region. Find the number of meters of
fencing required. Round your answer to the nearest tenth of a meter. Show all your work.
b.
Find the total area of the garden region. Round your answer to the nearest tenth of a square meter. Show
all your work.
Answer:
4.
4. A shipping company is considering using this box to ship products.
Using the box will be cost-effective only if the surface area to volume ratio of the box is less than 2. Determine
whether it is cost-effective for the company to use this box. Show and explain your work.
Answer:
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Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as ...
Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as your alpha value, make up a problem similar to this one. Make up 36 gas prices for your example. Use price values in your list that some you made up and be sure they are similar to the prices you have had in your area. List the values in your post.Instructions for your response. You will respond to at least 2 classmates.In your response, describe what you did and give the mean, standard deviation and confidence interval.Example below:
First find the mean. List all 36 gas prices in cells A1 to A36 in your excel spreadsheet.
On a different cell type in =average(A1:A36) and the hit enter to find the average
Assume your answer is 2.65
On a different cell type in =stdev.s(A1:A36) or =stdevA(A1:A36) and enter to find the standard deviation
Assume your answer is .43
Then type this in an excel cell =confidence(.05,.43,36) and hit enter. This is the E value
So take the mean of 2.65 and you have (2.65-E, 2.65+E) for your confidence interval
Formula you used above for the confidence interval:The formula is E= zsubc * sigma / sqrt nWhere the left hand endpoint is xbar - E and the right hand endpoint is xbar + EJust a review of your instructions:
First you will make up a problem with alpha = .05 and give the values for the problem. This is your main post.
Then will make 2 responses explaining all work and giving the solutions to 2 classmates problems.
Instructions: Your initial post should be at least 250 words. Please respond to at least 2 other students. Responses should be a minimum of 100 words and include direct questions.To earn full credit for this forum, you must respond to at least two (2) of your peers and post your initial post by Thurs.
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In the following problem give your answer using the notation nPr ...
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In the following problem give your answer using the notation nPr or nCr. You don't have to give an actual numerical answer.
There are 10 athletes entered in a race. If a gold, silver, or bronze medal is given to three of the athletes, in how many ways can one pick the winners of the gold, silver, and bronze medals?
There are 10 athletes entered in a race. If three identical gold medals are given to the group of athletes, in how many ways can one pick the winners of the gold medals?
A card is drawn out of a standard deck of 52 cards. Each card can be described by giving its "rank" (A, 2, 3, 4,...10, J, Q, K) and its "suit" (H for hearts, C for clubs, D for diamonds, and S for spades). For example, 2S denotes the two of spades and KH denotes the king of hearts. Write out the event described by each of the following statements as a set.
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E2: "draw a heart."
E3: "draw a face card." (A "face" card is a jack, queen, or king.)
E4: "draw a joker."
A card is drawn at random out of a well-shuffled deck of 52 cards. Find the probability of each of the following events. (Do problem #2 first.)
E1: "draw a king."
E2: "draw a heart."
E3: "draw a face card." (A "face" card is a jack, queen, or king.)
E4: "draw a joker."
Out of 420 students who took a statistics test, 260 passed. What percentage of the students passed the test?
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Suppose that you deposit $3,250.00 in a savings account that pays 0.4% annual simple interest. Assuming no withdrawals are made, find the balance in the account after 6 years. Round your answer to the nearest penny.
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Qualitative Research
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Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as ...
Forum post (Confidence Interval)
Topic 1: Confidence Interval View Full Description Confidence Intervals for the Mean sigma knownMain PostAssuming .05 as your alpha value, make up a problem similar to this one. Make up 36 gas prices for your example. Use price values in your list that some you made up and be sure they are similar to the prices you have had in your area. List the values in your post.Instructions for your response. You will respond to at least 2 classmates.In your response, describe what you did and give the mean, standard deviation and confidence interval.Example below:
First find the mean. List all 36 gas prices in cells A1 to A36 in your excel spreadsheet.
On a different cell type in =average(A1:A36) and the hit enter to find the average
Assume your answer is 2.65
On a different cell type in =stdev.s(A1:A36) or =stdevA(A1:A36) and enter to find the standard deviation
Assume your answer is .43
Then type this in an excel cell =confidence(.05,.43,36) and hit enter. This is the E value
So take the mean of 2.65 and you have (2.65-E, 2.65+E) for your confidence interval
Formula you used above for the confidence interval:The formula is E= zsubc * sigma / sqrt nWhere the left hand endpoint is xbar - E and the right hand endpoint is xbar + EJust a review of your instructions:
First you will make up a problem with alpha = .05 and give the values for the problem. This is your main post.
Then will make 2 responses explaining all work and giving the solutions to 2 classmates problems.
Instructions: Your initial post should be at least 250 words. Please respond to at least 2 other students. Responses should be a minimum of 100 words and include direct questions.To earn full credit for this forum, you must respond to at least two (2) of your peers and post your initial post by Thurs.
MAT1402 Rasmussen College Probability and Financial Math Questions
For this module's assignment review the following.
In the following problem give your answer using the notation nPr ...
MAT1402 Rasmussen College Probability and Financial Math Questions
For this module's assignment review the following.
In the following problem give your answer using the notation nPr or nCr. You don't have to give an actual numerical answer.
There are 10 athletes entered in a race. If a gold, silver, or bronze medal is given to three of the athletes, in how many ways can one pick the winners of the gold, silver, and bronze medals?
There are 10 athletes entered in a race. If three identical gold medals are given to the group of athletes, in how many ways can one pick the winners of the gold medals?
A card is drawn out of a standard deck of 52 cards. Each card can be described by giving its "rank" (A, 2, 3, 4,...10, J, Q, K) and its "suit" (H for hearts, C for clubs, D for diamonds, and S for spades). For example, 2S denotes the two of spades and KH denotes the king of hearts. Write out the event described by each of the following statements as a set.
E1: "draw a king."
E2: "draw a heart."
E3: "draw a face card." (A "face" card is a jack, queen, or king.)
E4: "draw a joker."
A card is drawn at random out of a well-shuffled deck of 52 cards. Find the probability of each of the following events. (Do problem #2 first.)
E1: "draw a king."
E2: "draw a heart."
E3: "draw a face card." (A "face" card is a jack, queen, or king.)
E4: "draw a joker."
Out of 420 students who took a statistics test, 260 passed. What percentage of the students passed the test?
An employee's hourly wage increased from $11.00 per hour to $13.50 per hour. What is the percentage increase in their wage?
Suppose that you deposit $3,250.00 in a savings account that pays 0.4% annual simple interest. Assuming no withdrawals are made, find the balance in the account after 6 years. Round your answer to the nearest penny.
Suppose that you deposit $3,250.00 in a savings account that pays 0.4% annual interest, with interest credited to the account at the end of each year. Assuming no withdrawals are made, find the balance in the account after 6 years. Round your answer to the nearest penny.
Suppose $3,250.00 is invested in a savings account with an APR of 0.4% compounded monthly. Assuming no withdrawals are made, find the balance in the account after 6 years. Round your answer to the nearest penny.PLEASE USE THE WORKSHEET ATTACHED!
Statistics Questions
1. It is sometimes said that the higher the correlation between two variables, the more likely the relationship is causal. ...
Statistics Questions
1. It is sometimes said that the higher the correlation between two variables, the more likely the relationship is causal. Do you think this is correct? Discuss.2. Discuss the strengths and weaknesses of correlational and regression studies; discuss concepts such as positive and negative correlations, correlation coefficients, confounding, and causality
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