There are 300 welders employed at maine shipyards corporation. a sample of 30 welders revealed that 18 graduated from a registered welding course. construct the 95 percent confidence interval for the proportion of all welders who graduated from a registered welding course

 (0.4247,0.7753)

Step-by-step explanation:

Given : Sample size : n=30

Number of people graduated from a registered welding course =18

The probability of people graduated from a registered welding course :

Significance level :

Critical value :

A confidence interval for population proportion is given by :-

Hence,  the 95 percent confidence interval for the proportion of all welders who graduated from a registered welding course = (0.4247,0.7753)

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

. + λrh() e 1 1 2 4 4 4 4 4 3 4 4 4 4 4 + th−1(− s(x)2 dx ω + λrh−1() e 2 1 2 4 4

step-by-step explanation: