Project #16557 - Statistics

Q1 : In a sample of 51 game show contestants, the mean winnings amount is $9,820 with a standard deviation of $1,750.

 

A. Create a 99% confidence interval estimate for the mean winnings amount for game show contestants. Use formulas and a chart.

 

 

B. With 0.05 significance, test the claim that the mean winnings amount for game show contestants is above $9,000. Use P-Vale method and formulas.

 

 

C. With .10 significance, test the claim that the standard deviation in winnings amount is $1,800. Use the critical value method.

 

 

D. Use your calculator to create a 95% confidence interval estimate for the mean winnings amount if you know that the population standard deviation is $3,020. Interpret your answer.

 

Q 2).Under what circumstances is it appropriate to use a z-score to create a confidence interval for a population mean? List all requirements.

 

Q3). The TI Calculators cannot run a hypothesis test for which parameter?

Q4). You are studying the mean height of 10-year-old boys. How many boys should you measure to be 95% confident that the sample mean is within .08 inches of the actual mean? Preliminary studies indicate that the population standard deviation is 2.1 inches.

 
Q5). In a sample of 42 garden statues in a city, 31 are gnomes.
a. Use your calculator to test the claim that the proportion of garden statues that are gnomes is not .7.Use .05 significance.

b. Use formulas to create a 90% confidence interval estimate for the proportion of garden statues that are gnomes.

 

 

 

Q 6). Find the P-value for a 2-tailed hypothesis test with the test statistic z =2.26 .

Subject Mathematics
Due By (Pacific Time) 11/10/2013 11:00 pm
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy