Consider the following hypotheses: h0: mean = 5 h1: mean < 5 a test is performed with a sample of size 25. the sample mean was 4.73 and the population standard deviation is 1.2. assume that the population is approximately normal. use the ti-84 plus calculator to compute the p-value. round your answer to four decimal places (for example: 0.0138). write only a number as your answer.

0.1406.

Step-by-step explanation:

Given :

To Find : compute the P-value.

Solution:

Sample size = 25

n < 30

So, we will go for t-test

Now we are given that  the population standard deviation is 1.2.

Where s is the variance

So, the variance is 36

we require sample standard deviation for t test

So, Sample standard deviation =

                                                  =

                                                  =

Formula of t-test =

Where s is the standard deviation of sample

Sample mean = 4.73

Mean =

s = 1.2247

n =25

So,  

So, p value with respect to t-table is 0.1406.

Hence p-value is  0.1406.

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation: