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 Introductory statistics
 Confidence intervals
 A population proportion

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A national survey of 1,000 adults was conducted on May 13, 2013 by Rasmussen Reports. It concluded with 95% confidence that 49% to 55% of Americans believe that bigtime college sports programs corrupt the process of higher education.
Find the point estimate and the error bound for this confidence interval.Can we (with 95% confidence) conclude that more than half of all American adults believe this?Use the point estimate from part a and n = 1,000 to calculate a 75% confidence interval for the proportion of American adults that believe that major college sports programs corrupt higher education.Can we (with 75% confidence) conclude that at least half of all American adults believe this?

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Questions & Answers
problem associated with index number
a survey of a random sample of 300 grocery shoppers in Kimberly mean value of their grocery was R78
proportion standard deviation of grocery purchase value is R21 the 95% confidence interval mean grocery purchase
We're would I find; The Z score?
in your text at the back
Vincent
can I share a question to you sir .if you can help me out
olanegan
A student is known to answer 3 questions out of 5 and another student 5 out of 7. if a problem is given to both of them assuming independent work. find the probability none of them will solve it.
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Mitiku
Population of children in one word
It has been claimed that less than 60% of all purchases of a certain kind of computer program will call the manufacturer’s hotline within one month purchase. If 55 out 100 software purchasers selected at random call the hotline within a month of purchase, test the claim at 0.05 level of significance
what is the parameter of the hypotesis (Ho: u=75) (HA:u=/75)
how can I understand the concept of set and set operation
Monday
multiple correlation coefficient is denoted by
how prepare satistic when remaining only two days inn examinatin
Sonia
how to find product moment correlation cofficient
A research study wishes to examine the proportion of hypertensive individuals among three different groups of exercises: marathon runners, yoga, and CrossFit. Of the 78 marathon runners, 14 are hypertensive. Of the 63 yoga practioners, 6 are hypertensive. And there are 16 hypertensive subjects among the 54 CrossFit athletes
What type of test statistic do you need to run for this type of analysis?
A research study wishes to examine the proportion of hypertensive individuals among three different groups of exercises: marathon runners, yoga, and CrossFit. Of the 78 marathon runners, 14 are hypertensive. Of the 63 yoga practioners, 6 are hypertensive. And there are 16 hypertensive subjects among the 54 CrossFit athletes
What type of test statistic do you need to run for this type of analysis?
plz solve this
zainab
2. The data that categories patients as males or
females are known
20 25
find the area under the normal curve
find the area normal curve
Akram
Let x1, x2, ...,xn be a random sample of size n from N(0,σ
), show that there exists an UMP test
with significance level α for testing H0
:
2 =
2 against H1
:
2 <
2 . If n=15, = 0.05,
and
2= 3, determine the BCR
explain null and alternative hypothesis are formulated
Shams
please give me reply quickly
Shams
Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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