Question

help PLEASE!!
A clothing manufacturer receives a unique population of 150 red 10cm diameter leather buttons for set of band uniforms. To determine whether the buttons are really 10cm in diameter a random sample of 9 is taken without replacement, and their diameters to the nearest millimeter are 9.9, 0.0,10.0,10.1,9.9,10.1, 10.0,10.0,9.9. Find the point estimate for X,S

Answer 1

@geerky42 help

Answer 2

@amistre64

Answer 3

I'm sorry, im not sure about this. This topic isn't my strong suit. So sorry I couldn't help!

Answer 4

the point estimate is whatever the sample size value is .... but what is X,S?

Answer 5

what does X,S mean for us?

Answer 6

the point estimate for the population mean is the sample mean

the point estimate for the population proportion is the sample proportion

the point estimate for the population standard deviation is ..... i recall that the sample standard deviation is a good estimate but that might depend on sample size and would have to adjust it by dividing it by sqrt(sample size)

Answer 7

but i got no idea what X,S stands for, its not a notation im familiar with

Answer 8

X is mean

Answer 9

S stands for standard deviation

Answer 10

@Schrodingers_Cat

Answer 11

then the sample mean is the point estimate for the population mean

and the standard error (standard deviation/sqrt(sample size)) is the point est ....