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Can anyone do this question in 20mins? please For the numerical
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Can anyone do this question in 20mins? please


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

Past experience indicates that monthly data use from mobiles is normally distributed with a mean of 1792 MB and a population standard deviation of 717 MB. 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 23 customers and recorded their monthly data usage. The manager found the sample average to be 1877.22 MB. The manager is looking to conduct a statistical test at the 10% level of significance to determine whether the campaign increased the amount that customers download.

Part A) What is the null hypothesis?

H0: ? ? 1792H0: ? > 1792H0: ? = 1877.22H0: ? ? 1877.22H0: X?? 1792


Part B) What is the alternate hypothesis?

H1: ? > 1792H1: ? ? 1792H1: ? ? 1877.22H0: ? > 1877.22H0: X?> 1792


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

 







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