I am so lost! please hellp!!!
A National Retail Foundation survey found households intended to spend an average of $649 during the December holiday season (The Wall Street Journal, December 2, 2002). Assume that the survey included 600 households and that the sample standard deviation was $175.
a. With 95% confidence, what is the margin of error?
b. What is the 95% confidence interval estimate of the population mean?
c. The prior year, the population mean expenditure per household was $632. Discuss the change in holiday season expenditures over the one-year period.
Margin of error of a sample?
n=600
X=649
s175
a. ME is 14.1744
b.637.8256, 663.1744
c. i dont understand what this question is asking
but to find the ME you take a confidence leve of 95% with a degree of freedom of 599 which is aprox. 1.984 then you mulitiply that (1.984) by std dev/sq root of the sample size
so..
1.984 X 175/24.495
for b. you take the mean and ± the ME so 649±14.174
i hope that helps
Saturday, November 19, 2011
Monthly food cost report sample?
Describe and analyses the food cost for the month, finding, market survey, menu analyses extra.
Monthly food cost report sample?
do your own homework.
How are you expecting to get an answer when you don't even provide all the info needed?
Reply:I have some spreadsheets for menu mix analyses and some others from culinary arts school. Leave me a message with your e-mail and I'll send them to you. They might be what you need.
Reply:If this is your homework, why don't you do it yourself?
Reviews
Monthly food cost report sample?
do your own homework.
How are you expecting to get an answer when you don't even provide all the info needed?
Reply:I have some spreadsheets for menu mix analyses and some others from culinary arts school. Leave me a message with your e-mail and I'll send them to you. They might be what you need.
Reply:If this is your homework, why don't you do it yourself?
Reviews
I want to find the websites which i can find lots of interesting statistical survey!?
i'm gonig to to a statistical report which is about MULTIPLE REGRESSION,and my classmates and i want to do soemrthing fun.So i need a website that concludes the full questionare or sampling(or something like that).where an i find it?
I want to find the websites which i can find lots of interesting statistical survey!?
The University of Michigan has this page with huge amount of links to data, classified by topic, industry, etc. and includes links to government data as well.
http://www.lib.umich.edu/govdocs/stats.h...
To find several other resources like this, you might be interested in this kind of search at del.icio.us:
http://del.icio.us/search/?all=data%20-v...
This searches for "data" and either "statistics" or "statistical", dropping all matches that included "visualization" (tools)
Del.icio.us is a great tool for doing themed websearching.
Reply:excuse I do know
I want to find the websites which i can find lots of interesting statistical survey!?
The University of Michigan has this page with huge amount of links to data, classified by topic, industry, etc. and includes links to government data as well.
http://www.lib.umich.edu/govdocs/stats.h...
To find several other resources like this, you might be interested in this kind of search at del.icio.us:
http://del.icio.us/search/?all=data%20-v...
This searches for "data" and either "statistics" or "statistical", dropping all matches that included "visualization" (tools)
Del.icio.us is a great tool for doing themed websearching.
Reply:excuse I do know
What is an example of a conclusion that a person might reach about this survey described in a representative s
In a representative sample. If a music producer conducts a survey around video games and wants to know what college students think of poular music. He conducts the survey in the area of the student union, what is the example of a conclusion the producer might reach based on this survey that might not be true about college students in general
What is an example of a conclusion that a person might reach about this survey described in a representative s
The survey is probably not going to be a simple random sample. The sampling method you are describing would probably best be desribed as a convenience sample. Students who do not frequent the student union would not be represented. If we only ask students who GO to the student union about their thoughts on video games, we won't adequately represent ALL students, including "bookworms" (who are studying in the library) or "commuters" (who go home at night) or "off-campus students". Perhaps we are conducting the survey on a day when there is an impromptu reggae band playing in the student union. We might conclude, then, that ALL college students like reggae music when in fact, the students included in the survey were coming to the student union specifically to SEE the reggae band.
What is an example of a conclusion that a person might reach about this survey described in a representative s
The survey is probably not going to be a simple random sample. The sampling method you are describing would probably best be desribed as a convenience sample. Students who do not frequent the student union would not be represented. If we only ask students who GO to the student union about their thoughts on video games, we won't adequately represent ALL students, including "bookworms" (who are studying in the library) or "commuters" (who go home at night) or "off-campus students". Perhaps we are conducting the survey on a day when there is an impromptu reggae band playing in the student union. We might conclude, then, that ALL college students like reggae music when in fact, the students included in the survey were coming to the student union specifically to SEE the reggae band.
What are the best sites for free stuff/samples?
Preferably ones that are not scam sites. That require a long survey to get a sample.
What are the best sites for free stuff/samples?
I check www.mysavings.com and www.heyitsfree.com just about every day. They troll the web for you, checking for free stuff and gathering it all in one place. Then, all you have to do is click on the links and it takes you straight to the site for the freebie. Uusallly, there is a very short form to fill in, not a survey. The freebies come in anywhere from a few days to 8 weeks. I've gotten skin care samples, razors, toiletries, books, an umbrella, a scarf and more! Have fun!!!
Reply:www.slickdeals.net
You click forums and then freebies and voila, there you are a great list of freebies. If you click free magazines, you can find lots of free magazines.
Reply:Just Free Stuff......you will get emails telling you where to get stuff and where to enter contest. (sorry I'm not sure how to post a link)
Reply:I agree with bobashep - I've checked out most, if not all, of the free sample sites out there. Most of them are garbage, but there are a few really good ones that have all legitimate free samples. Of the few good ones that do exist, http://www.mysavings.com is definitely the best. They update their samples daily and their forums are very active.
What are the best sites for free stuff/samples?
I check www.mysavings.com and www.heyitsfree.com just about every day. They troll the web for you, checking for free stuff and gathering it all in one place. Then, all you have to do is click on the links and it takes you straight to the site for the freebie. Uusallly, there is a very short form to fill in, not a survey. The freebies come in anywhere from a few days to 8 weeks. I've gotten skin care samples, razors, toiletries, books, an umbrella, a scarf and more! Have fun!!!
Reply:www.slickdeals.net
You click forums and then freebies and voila, there you are a great list of freebies. If you click free magazines, you can find lots of free magazines.
Reply:Just Free Stuff......you will get emails telling you where to get stuff and where to enter contest. (sorry I'm not sure how to post a link)
Reply:I agree with bobashep - I've checked out most, if not all, of the free sample sites out there. Most of them are garbage, but there are a few really good ones that have all legitimate free samples. Of the few good ones that do exist, http://www.mysavings.com is definitely the best. They update their samples daily and their forums are very active.
How can i get free samples without doing a stupid survey. i just want to get some freebies?
teenfreeway.com
How can i get free samples without doing a stupid survey. i just want to get some freebies?
u cant
Reply:You can always go to the makeup counters in department stores and ask. They are more than happy to give away freebies because they know if you like a product, you will probably buy it.
Ask what they recommend for your skin and coloring, and when they ask if you want to buy it, say you're not sure, ask if they have samples so you can try it first. I worked at the Lancome counter at Macys...these people work on commission and would be more than happy to let you try it, if you come back its money in their pocket! It certainly doesnt hurt to ask. They will also do your makeup free to try out colors, you just have to book an appointment.
Reply:Chat up salesladies in stores, act sophisticated, maybe buy a little something, then ask for some samples. Works like a charm.
Reply:www.everydayminerals.com
teeth
How can i get free samples without doing a stupid survey. i just want to get some freebies?
u cant
Reply:You can always go to the makeup counters in department stores and ask. They are more than happy to give away freebies because they know if you like a product, you will probably buy it.
Ask what they recommend for your skin and coloring, and when they ask if you want to buy it, say you're not sure, ask if they have samples so you can try it first. I worked at the Lancome counter at Macys...these people work on commission and would be more than happy to let you try it, if you come back its money in their pocket! It certainly doesnt hurt to ask. They will also do your makeup free to try out colors, you just have to book an appointment.
Reply:Chat up salesladies in stores, act sophisticated, maybe buy a little something, then ask for some samples. Works like a charm.
Reply:www.everydayminerals.com
teeth
Statistics...survey?
I'm taking a math statistics class and i have to conduct a survey. I want to know if people lost weight and how did they lose it? How large should my population and sample be? What survey method do you think is best for this survey?
Statistics...survey?
u should also conduct the survey on Y/A and as well as ppl ur friends with! A big sample would be a good idea :)
Reply:In theory, the larger your sample the more reliable your results. In practice, however, this is a school project, so you have to keep it reasonable. Anything in between 10 - 50 people (however much you can manage) should be fine, I guess.
As for the methodology: A fully structured questionnaire; these are really the standard method in quantitative research (which is where statistics are most useful, anyway). A further advantage of this is that you can just give it to people and ask them to fill it out by themselves rather than you having to spend extra time interviewing them.
Make sure to include a demographics section (age, sex, maybe some economic status indicators) so that you can compare these to the overall results.
Statistics...survey?
u should also conduct the survey on Y/A and as well as ppl ur friends with! A big sample would be a good idea :)
Reply:In theory, the larger your sample the more reliable your results. In practice, however, this is a school project, so you have to keep it reasonable. Anything in between 10 - 50 people (however much you can manage) should be fine, I guess.
As for the methodology: A fully structured questionnaire; these are really the standard method in quantitative research (which is where statistics are most useful, anyway). A further advantage of this is that you can just give it to people and ask them to fill it out by themselves rather than you having to spend extra time interviewing them.
Make sure to include a demographics section (age, sex, maybe some economic status indicators) so that you can compare these to the overall results.
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