Mean waiting time of all customers

Assignment Help Basic Statistics

Reference no: EM1312513

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes with a standard deviation of 0.5 minutes. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.

A) The standardized test statistic is

B) The p-value is

C) At 95% confidence, it can be concluded that the mean of the population is:

significantly greater than 3
not significantly greater than 3
significantly less than 3
significantly greater then 3.18

Reference no: EM1312513

Questions Cloud

Determining operating cash flow : Find out the operating cash flow (OCF) for Kleczka, Inc., based upon the following data. (All values are in thousands of dollars.)

Assumption of t-test : When the p-value is used for hypothesis testing, the null hypothesis is rejected if

Adjusting journal entries and partial balance sheet : On jan 1 07 daniels company contained these liability accts. Accts payable 42,500 Sales tax payable 6,600 Unearned service revenue 19,000 During january

Functions of skeletal system : Important functions of skeletal system involve: protection of the brain and soft organs. storage of water. production of Vitamin E.

Mean waiting time of all customers : Determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.

Initial speed were the keys thrown : A student throws a set of keys vertically upward to her sister in a window 4.0 m above. The keys are caught 1.5 s later by the sister’s outstretched h&. Find initial speed were the keys thrown?

Discussing the skeletal system : Which of the following statements is true? The first cervical vertebra is called the axis.The spinal cord protects the vertebral column.

Compute the best option of lease or buy : Compute the best option of lease or buy on the facts given - What is the minimal number of copies for which your law office should buy the machine instead of leasing it?

Draw on face of financial statements : Show Conclusions you draw on face of financial Statements - Cash flow statement analysis is a very important part of analyzing a company's overall financial health.

User Account

All Pages