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StClowers
 one year ago
An online site presented this question, “Would the recent norovirus outbreak deter you from taking a cruise?” Among the 34,696 people who responded, 66% answered “yes”. Use the sample data to construct a 95% confidence interval estimate for the proportion of the population of all people who would respond “yes” to that question.
__ < p < __ (round to three decimal places as needed)
Does the confidence interval provide a good estimate of the population proportions?
(a) No, the sample is a voluntary sample and might not be representative of the population.
(b) No, the responses are not independent.
(c) Yes, the sample is large enough to provide a good estimate of the population proportion.
(d) Yes, all the assumptions for a confidence interval are satisfied.
StClowers
 one year ago
An online site presented this question, “Would the recent norovirus outbreak deter you from taking a cruise?” Among the 34,696 people who responded, 66% answered “yes”. Use the sample data to construct a 95% confidence interval estimate for the proportion of the population of all people who would respond “yes” to that question. __ < p < __ (round to three decimal places as needed) Does the confidence interval provide a good estimate of the population proportions? (a) No, the sample is a voluntary sample and might not be representative of the population. (b) No, the responses are not independent. (c) Yes, the sample is large enough to provide a good estimate of the population proportion. (d) Yes, all the assumptions for a confidence interval are satisfied.

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StClowers
 one year ago
Best ResponseYou've already chosen the best response.0Please help me enter this into the Ti84 calc THANKS!!

violy
 one year ago
Best ResponseYou've already chosen the best response.0We will use the 1PrpZInt function. We will press the STAT, right arrow key twice. Then, we press ALPHA MATH.

violy
 one year ago
Best ResponseYou've already chosen the best response.0We will input the appropriate values for x, n and Clevel. Then, we will Calculate.

violy
 one year ago
Best ResponseYou've already chosen the best response.0By the way, take note that p hat = x/n.

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0ok, which values are which though...thats the confusing part.

violy
 one year ago
Best ResponseYou've already chosen the best response.0For the p hat, we will take note of the sample proportion given for the people who said yes. can you identify that? For the n, it is the sample size or the number of people who responded.

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0it gave me an error...

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0do i put in the 34696 just like that?

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0I put x = .66 and n = 34696 then .95 for the clevel and it gave me an error.. :(

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0ok so i tried it again and entered just 66 as the x and it gave me (.00144, .00236)..isthat right @violy ?

violy
 one year ago
Best ResponseYou've already chosen the best response.0Kindly recheck the value of the x.

violy
 one year ago
Best ResponseYou've already chosen the best response.0The 0.66 is for the p hat. If we use the formula p hat =x/n what will we get for the x?

violy
 one year ago
Best ResponseYou've already chosen the best response.00.66=x/34696. Solve for x.

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0Im so clueless, I guess Im not understanding where to get x

violy
 one year ago
Best ResponseYou've already chosen the best response.0We have the 34696 being divided on right side, we will use the opposite operation of division, which is?

violy
 one year ago
Best ResponseYou've already chosen the best response.0That is correct, so we multiply each side by 34696. Can you try it?

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0the left side is 22899.36 and the right side is 1203812416

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0ok.....in the question it asks to round to three decimal places as needed...
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