2. supermarket manager is interested in customer transactions to assist with budgeting as well as product placement throughout the store. Of particular interest to the manager is how long the customer spends in the store and whether the customer uses a self- service register for their transaction, Data has been collected from 50 customers and is provided in the fie FAT 1 Version A data.xlsx a) Use Linear Regression Excel to state the 95% confidence interval for the proportion of all Customers who use a self-service register. b) Interpret the confidence interval stated in part a) The supermarket manager is also interested to know if there is a difference in average shopping time for customers using the self-serve register and those using an assisted register. C. Use Linear Regression in Excel to conduct a hypothesis test at the 1% level of significance to determine if the shopping time is the same for customers using self-serve and assisted registers

Last week Julia ran 30 miles more than pranav. Julia ran 47 miles . How many miles did pranav run?

before you look at the can you're friend says, "i didn't know you drank selzter

Susan says she Googled and found the population of the United States is approximately 328 million people so that is the answer.  What mistake did Susan make?

Fire departments in your county have an average benchmark of 6 minutes on a fire call from the time the 911 operator takes the call to the time the first firefighter arrives on the scene. This 6-minute average includes a 1-minute call handling time from when 911 gets the call to when they notify the fire department. There is a 1-minute time from when the firefighters are notified to when they get out of the fire station. Then they have 4 minutes from when they leave the station to when they arrive on scene. Two fire departments in your county are being compared. From one fire department, a random sample of 10 calls has a mean of 6.51 minutes total with a standard deviation of 0.26 minutes. From the other fire department, a random sample of 11 calls shows a mean of 6.42 minutes with a standard deviation of 0.19. Construct a 90% confidence interval for the difference in the mean call time between the two fire departments. Fire departments in your county have an average benchmark of 6…

Please make sure you answer all of it it is all one question