True average daily amount of tips

Assignment Help Basic Statistics

Reference no: EM1399832

A prospective employee was told she could average more than $80 a day in tips. Assume the standard deviation of the population is $3.24. Over the first 35 days the employee worked the mean daily amount of her tips was $84.85. At the .01 significance level can we (she) conclude that the true average daily amount of tips is greater than $80? yes or no.....

Reference no: EM1399832

Questions Cloud

Normal polulation with a population standard deviation : A sample of 64 observations is selected from a normal polulation with a population standard deviation of 15. The sample mean is 215. Ho: U>= 220 and H1: U

Assumptions of a particular model : Discuss the assumptions of this model. Specifically, how does each variable affect demand? How do the variables influence each other? What limitations might this model have? How can it be improved?

Upper and lower control-chart limits for averages : The overall average for the samples is 17 ounces. The range is only 0.5 ounce. Determine the upper and lower control-chart limits for averages for the boxes of cereal.

Standard deviation of no-shows : If 15 golfers have checked in using this process, what is the expected number and standard deviation of no-shows among these golfers? (Show computations)

True average daily amount of tips : At the .01 significance level can we (she) conclude that the true average daily amount of tips is greater than $80? yes or no.....

Probability of a randomly selected customer buying grocery : A company that has a large number of supermarket grocery stores claims that customers who pay by personal checks spend an average of $87 on groceries at these stores with a standard deviation of $22.

How many kilometers is the actual path : They'll need to follow a path to get to the picnic spot. A map of the path is based on a scale of 1:30,000, in cm. If the path is 12 cm on the map how many kilometers is the actual path?

Determine the type of sampling : The food distributor selects a sample of stores located in areas where he believes the shoppers are receptive to trying new products. What type of sampling does this represent?

Rolling of a fair six-sided die : If a fair six-sided die is rolled 1200 times, find the probability that an even number will occur at most 620 times.

User Account

All Pages