## [answered] A company thats make shampoo wants to test whether the aver

?A company thats make shampoo wants to test whether the average amount of shampoo per bottle is 16 ounces. The standard devaition is known to be 0.30 ounces. Assuming that the hypotheseus test is to be performed using 0.10 level of significance and random sample of 81, how large sample mean be before they reject the null hypothesis?/

Avg amt of shampoo per bottle is = 16 Ozs.

SD ( ) = 0.3 Ozs

Level of signioficance ( ) = 0.10 the Z value is 1.28

SE = / ?n = 0.3 / ?81 = 0.o33 ozs

Upper tail critical value at ( ) = 0.10 is =...

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