Enter Title

vocabulary

100

Use t interval when n <

30

200

Given the p-hat and the n, how do you find x?

multiply p hat by  n

300

n -1 is the formula for ...

the degree of freedom

400

point estimate is another name for the 

mean

500

if a preliminary estimate is not available, use p -hat and q -hat = __ , for finding the sample size in a proportion.

.5

large/small samples

100

Find the margin of error for an interval (120,180)

30

200

Find the minimum sample size, given z = 2.575, E = .1 and Sx = 2.0

2653

300

Construct the 99% confidence interval for a mean of 78, standard deviation of 5.4 and a sample size of 23.

(74.83,81.74)

400

Mrs. Schab selected 15 fast food restaurants and the mean number of calories in a burger was 450 with a standard deviation of 30 calories.  What is the 95% confidence interval?

433.39,466.61

500

Find the minimum sample size for a confidence level of 90%, E = .12 and stand deviation of 2.6

1263

proportions

100

If 260 parents said they do not have health insurance for the children and there are 2600 in the total population, what is the p hat?

.10

200

Recently a survey was done to see the amount contributed to a church fund.  Approximately 65% of the funds came from 420 people.  What is the approximate total population of the congregation?

646

300

Find the point estimate, given the sample size of 1300, with 350 people against the ban of cigarette smoking?

.73

400

Mr. Wyckoff reported that 352 of 1419 students scored proficient in reading on the last KY state core standards test.  Find the 95% confidence interval for the proportion of students who are proficient? 

(.2256,.2705)

500

Find the minimum sample size required for a population proportion given p hat is .23 C = .95 and E = .25

11

standard deviations

100

Find the critical values for a 90% CI sample size 20

10.117 & 30.144

200

Find the critical values for a CI = .95 and n = 20

9.764  &  30.191

300

To find the standard deviation interval the chi squared value is divided into the n-1 and sample standard deviation.  Which one is squared?

sample standard deviation

400

What value(s) can x²   be?

The chi squared value is always > 0

500

Find the interval for a 90% CI given the standard deviation is 26 and the sample size is 10.

18.96, 42.78

anything goes

100

What two sports does Mr. Arlo coach?

bowling & baseball

200

What is Mrs. Slusher middle name?

Louise

300

How old was Mr. Lindley when he graduated high school?

16

400

What does Mrs. Good teach this year?

Geometry only!

500

What faculty member, who graduated from CHS in 1990, was voted "most school spirit" senior superlative ?

Mr. Wyckoff