An educator wants to construct a 99% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 600 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) what parameter are we estimating? p b) What is the point estimate of that parameter? OT c) What is a success for this problem? proficient in reading d) How many successes were there? e) Find the margin of error for a 99% confidence interval, rounded to the 5th. f) Round to the fourth. We are 99% confident that the true proportion of California school children that are proficient in reading is between and

MATLAB: An Introduction with Applications
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An educator wants to construct a 99% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 600 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading.

a) What parameter are we estimating?  
**p**

b) What is the point estimate of that parameter?  
**p̂**

c) What is a success for this problem?  
**proficient in reading**

d) How many successes were there?  
_(Blank)_

e) Find the margin of error for a 99% confidence interval, rounded to the 5th.  
_(Blank)_

f) Round to the fourth.  
We are 99% confident that the true proportion of California school children that are proficient in reading is between _(Blank)_ and _(Blank)_.
Transcribed Image Text:An educator wants to construct a 99% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 600 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) What parameter are we estimating? **p** b) What is the point estimate of that parameter? **p̂** c) What is a success for this problem? **proficient in reading** d) How many successes were there? _(Blank)_ e) Find the margin of error for a 99% confidence interval, rounded to the 5th. _(Blank)_ f) Round to the fourth. We are 99% confident that the true proportion of California school children that are proficient in reading is between _(Blank)_ and _(Blank)_.
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