(Answered) The average prime member spends 5010 a year on the website

Statistics

The average prime member spends $5,010 a year on the website shopping a wide assortment of goods. In order to increase sales, Amazon starts offering Two Hour Prime Delivery (you can order stuff on Amazon.com and it gets delivered to you in 2 hours or less) to a random sample of 99 prime customers. You are hired by Amazon to analyze if the introduction of Two Hour Prime delivery increases sales for Amazon. You find that the 99 random prime customers that were offered Prime Delivery spent $5,125 on Amazon with a standard deviation of $490 in sales. (Without using MINITAB)

(A) Test whether the introduction of Two Hour Prime Delivery increased sales for Amazon.com. Set up your null and alternative hypotheses. Test at the 95% level of significance. Show your test and critical statistics. Did Two Hour Delivery significantly increase sales?

(B) Construct a 99% confidence interval.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92074159
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Three airlines serve a small town in ohio airline a has 49

Three airlines serve a small town in Ohio. Airline A has 49% of all scheduled flights, airline B has 27% and airline C has the remaining 24%. Their on-time rates are 83%, 62%, and 39%, respectively. A flight just left on ...

If a fair coin is tossed five times what is the probability

If a fair coin is tossed five times, what is the probability of tossing exactly three heads?

Bob is interested in studying whether the average household

Bob is interested in studying whether the average household income in city A is lower than the national benchmark, μ 0 = $51,500. He collects income information from a random sample of 100 households, conducts a one-sam ...

If sailsboro just paid a dividend of 2 per share amp

If Sailsboro just paid a dividend of $2 per share & dividends are expected to grow at 8%, 6%, and 5% for the next three years respectively. After that the dividends are expected to grow at a constant rate of 3% indefinit ...

A measurement of etch depth has standard deviation of 2 um

A measurement of etch depth has standard deviation of 2 um. The specifications are 150 to 200 um. If k = 6, what is the P/T ratio of the measurement? Please show the formula/steps taken to receive the answer.

A blaster rifle manufacturing facility on naboo has 6500

A blaster rifle manufacturing facility on Naboo has 6,500 employees. The employees were asked whether they preferred a four-day work week (10 hours per day), a five- day work week (8 hours per day), or flexible hours. Yo ...

In a class there are 7 girls and 5 boys the median age of

In a class there are 7 girls and 5 boys. The median age of the 7 girls is 12 and the median age of the 5 boys is 14. Additionally, you know that there are 3 girls with age greater than 14 and 2 boys with age less than 12 ...

You play the following game against your friend you have 2

You play the following game against your friend. You have 2 urns and 4 balls. One of the balls is black and the other 3 are white. You can place the balls in the urns any way that you'd like, including leaving an urn emp ...

A system has two independent components both components

A system has two independent components. Both components must function for the system to function. The first component has 7 components that each work with probability 0.95. If at least 5 elements are working then the fi ...

A recent study found that 64 of workers between the ages of

A recent study found that 64?% of workers between the ages of? 20-29 cash out their retirement accounts when they lose their jobs or move to a new employer. Complete parts a through e below based on a random sample of 14 ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert