Question Details

[solution] » For the numerical questions below, express your answers in four

Brief item decscription

Step-by-step solution file


Item details:

For the numerical questions below, express your answers in four
More:

For the numerical questions below, express your answers in four decimal places.

Past experience indicates that average download times of an online newspaper via a browser on mobiles is normally distributed with a mean of 0.58 seconds and a population standard deviation of 0.41 seconds. After an advertising campaign aimed at showing the benefits of a new nationwide 4G network, the manager of a telecommunications firm took a random sample of 18 customers and recorded their average download times. The manager found the sample average to be 0.43 seconds. The manager is looking to conduct a statistical test at the 5% level of significance to determine whether the campaign lowered mean download times.

Part A) What is the null hypothesis?

H0: ? ? 0.58H0: ? < 0.58H0: ? = 0.43H0: ? ? 0.43H0: X?? 0.58


Part B) What is the alternate hypothesis?

H1: ? < 0.58H1: ? ? 0.58H1: ? ? 0.43H0: ? < 0.43H0: X?< 0.58


Part C) What is the value of ??

Answer: Answer

Part D) What is the sampling distribution of the sample mean?

The sampling distribution is normal since the population standard deviation is known.The sampling distribution is a student-t since the population standard deviation is known.There is not enough information to answer this question.


Part E) What is the value of the test statistic?

Answer: Answer

Part F) What is the p-value?

Answer: Answer

 







About this question:
STATUS
Answered
QUALITY
Approved
ANSWER RATING

This question was answered on: Feb 21, 2020

PRICE: $24

Solution~00066564837.zip (18.37 KB)

Buy this answer for only: $24

This attachment is locked

We have a ready expert answer for this paper which you can use for in-depth understanding, research editing or paraphrasing. You can buy it or order for a fresh, original and plagiarism-free copy (Deadline assured. Flexible pricing. TurnItIn Report provided)

Pay using PayPal (No PayPal account Required) or your credit card. All your purchases are securely protected by PayPal.
SiteLock

Need a similar solution fast, written anew from scratch? Place your own custom order

We have top-notch tutors who can help you with your essay at a reasonable cost and then you can simply use that essay as a template to build your own arguments. This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student. New solution orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

Order Now