In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated. Company A Company B Sample size 80 60 Sample mean $16.75 $16.25 Population standard deviation $1.00 $.95 The p-value is a. .0084. b. .0042. c. .0026. d. .0013

The correct option is C

Step-by-step explanation:

From the question we are told that

    The  sample size for company A is

    The sample size for company B is  

    The sample mean for A is  

    The sample mean for B  is  

  The population standard deviation for A is  

   The population standard deviation for B is  

The null hypothesis is  

The null hypothesis is  

Generally the test statistics is mathematically represented as

=>  

=>  

Generally from the  normal distribution table the probability  of  z  

Gnerally the p-value is mathematically represented as

=>  

=>  

your answer is #3 , 8 - 3 square root of 11