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## A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.

tutor2 : hi. how may I help u ?
tutor2 : answering to ur email.
tutor2 : Please note, due to lack of resources, we can only do 1 problem FREE in 24 hours period. You can always come back tomorrow for another free problem. Please, tell your friends about our free service - 1 free in 24 hours
tutor2 : I have written null and alternative hypothesis .
tutor2 : z = (1.99 - 2)/(0.05/sqrt(100)) = -2
tutor2 : critical z = -1.645 at 0.
tutor2 : critical z = -1.645 at 0.
tutor2 : null hypothesis : mu = 2
tutor2 : critical z= -1.645 at 0.05 level.
tutor2 : Alternative hypothesis : mu < 2
tutor2 : I sent answer to ur email.
tutor2 :

null hypothesis : mu = 2

Alternative hypothesis : mu < 2
tutor2 :

null hypothesis : mu = 2

Alternative hypothesis : mu < 2
student : having problems with the following
student : The inspection division of the County Weights and Measures department is interested in estimating the actual amount of soda that is placed in 2-liter bottles at the local bottling plant of a large, nationally-known soda company. The bottling plant had informed the inspection division that the standard deviation for the 2-liter bottles is .05 liter. A random sample of 100 2-liter bottles obtained from this bottling plant indicated a sample average of 1.99 liters. Based on the sample data, is there evidence that the true average amount of soda in the bottles is less than than two liters? Use the α =.01 level of signficance.

Present your null and alternative hypotheses

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