If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4 then the standard error is

The standard error is 11.

Step-by-step explanation:

Given : If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4.

To find : The standard error ?

Solution :

The standard error formula is

Where, is the standard deviation of a normally distributed population

n=4 is the sample size

Substitute the value,

Therefore, the standard error is 11.

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6