8 Answered Questions for the topic Inferential Statistics

Inferential Statistics

07/10/18

Inferential Statistics
The cruising altitude for the fleet of one commercial airline are normally distributed with a mean of 34,950 and a standard deviation of 1830 feet. Determine the percentage of flights that have a... more
Follows • 2
Expert Answers •1
Inferential Statistics

07/10/17

During one season of racing at the Talladega Superspeedway,
During one season of racing at the Talladega Superspeedway, the mean speed of the cars racing there was found to be 158.9 mph with a standard deviation of 6.7 mph. What speed represents the 30th... more
Follows • 1
Expert Answers •1
Inferential Statistics

07/10/17

The heights of American women ages 18 to 29
The heights of American women ages 18 to 29 are normally distributed with a mean of 64.3 inches and standard deviation of 3.8 inches. An American woman in this age bracket is chosen at... more
Follows • 2
Expert Answers •1
Inferential Statistics Statistics Probability Joint Probability

01/21/17

Need Help finding constant C in joint pmf for two discrete variables
Determine the constant c so that f (x, y) satisfies the conditions of being a joint pmf for two discrete random variables X and Y:   f (x, y) = c(1/4)^x * (1/3)^y, where x = 1, 2, . . . , y = 1,... more
Follows • 2
Expert Answers •1
Inferential Statistics

02/26/16

INFERENTIAL STATISTICS - please help me. thanks!
D.G Co. claims that the average gross sales of their products in all their branches is 37 million/ week with a standard deviation of 6 million. A certain researcher found out that the average gross... more
Follows • 2
Expert Answers •1
Inferential Statistics

02/24/16

a coin s tossed 20 times resulting in 5 heads. Is this sufficient evidence to reject the hypothesis at the 0.03 level of significance that the coin is balanced?
we are trying to get the significance of the null and alternative hypothesis using a method such as chi square or z test
Follows • 2
Expert Answers •1

01/17/16

Test significance of the correlation between the General Weighted Average and the daily allowance of junior students at ? =0.05.
GWA of Junior Students (Non-Working)/ Daily Allowance1.9 /1502.3/ 1202.2 /1102.9 /1001.4/ 1002.4 /1001.7/ 1002.4 /1002.1 /1002 /802.4 /802 /801.2/ 753.2 /752.4 /702.5 /701.1 /701.3 /702.8 /702.8... more
Follows • 2
Expert Answers •1
Inferential Statistics

10/26/14

In an analysis of variance, which of the following is determined by the size of the sample mean differences? a. SSbetween c. dfbetween b. SSwithin d. dfwithin
In an analysis of variance, which of the following is determined by the size of the sample mean differences? a. SSbetween c. dfbetween b. SSwithin d. dfwithin
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.