Answered You can buy a readymade answer or pick a professional tutor to order an original one.
Consider the following hypothesis test: H0:μ≤50 Ha:μ>50H0:μ≤50 Ha:μ>50. A sample of 5555 is used and the population standard deviation is 77. Use the critical value approach to state your conc
Consider the following hypothesis test:
H0:μ≤50 Ha:μ>50H0:μ≤50 Ha:μ>50.
A sample of 55 is used and the population standard deviation is 7. Use the critical value approach to state your conclusion for each of the following sample results. Use α=0.05α=0.05.
a. With ¯x=52.5x¯=52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?
b. With ¯x=51x¯=51, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?
c. With ¯x=51.8x¯=51.8, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?
 @
 ANSWER

Tutor has posted answer for $20.00. See answer's preview
*********** ***** ********** *** ''z'' is our **** ********* *** ******* for *** ***** ***** of *** ****** is:[{MathJax ******************************************** z&=\frac{\bar ******************** ************************ *************** ********************************** ***************************************** test statistic ** ****** ******** value for ''z'' that ***** * 005 ***** ** significance is ***** ************ ********************************************************************************************************* *** **** ********* *********** ****** **** the critical *************** ******************************** **** statistic ** greater **** *** ******** ''z'' Therefore ** ****** *** **** ********** *** ******** that ********** **** ** greater **** 50\\!__b__\\Calculate *** **** ********* *********** ****** **** *** sample **** ** ***** to ************ fullWidth='false'\begin{align*}\displaystyle z&=\frac{5150}{\displaystyle ********************************************* *** **** ********* with the ******** *************** ******************************** test statistic is less **** *** ******** ''z'' ********* ** **** ** reject *** **** and ******** **** *** ********** **** ** not greater **** ********************* the **** statistic when *** ****** **** ** ***** ** ************* ******************************************** ********************************** ********************************************* *** **** ********* *** the ******** *************** ******************************** **** ********* is less **** *** critical ''z'' We **** ** ****** *** **** ********** *** ******** **** *** population mean ** less than ** equal ** **