subject
Mathematics, 19.05.2020 22:07 XxpinkgothicxX

Baseball America has noticed the number of homeruns has been increasing in recent years in the MLB. They want to develop a 95% confidence interval that captures the true home run percentage. Home run percentage is defined as the number of home runs per 100 at bats. To do so, they randomly selected 64 current MLB players and calculated their homeruns per at bat for the previous year, and obtained a sample mean and sample standard deviation of 2.2 and 1.7, respectively. a. Compute a 95% confidence interval for the population mean of the home run rate for all MLB players. Interpret with context to the problem. b. The home run percentages for three MLB players are:Player 1: Primetime Peanuts: 2.1Player 2: Spleens "No Pop" McGillicuddy: 4Player 3: Big Dog Lebowski: 1.5Assess the confidence interval you calculated and describe how the home run rate for these three players compare to the interval calculated for the population mean. c. If the confidence level was increased to 99%, would the interval be wider or narrower? Why?d. Before collecting any data, Baseball America wants to achieve a maximum bound on error of 0.3. They suspect the range of home run rates to be 1.5 to 8. How large a sample should be used to be 95% confident of achieving this level of accuracy?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
Plzzz asapppppp what is the inverse of f if f(x)=^3 sqrt x-5
Answers: 1
question
Mathematics, 21.06.2019 21:00
2x minus y equals 6, x plus y equals negative 3
Answers: 1
question
Mathematics, 21.06.2019 23:30
Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality
Answers: 1
question
Mathematics, 22.06.2019 01:30
Two numbers have a sum of 93. if one number is p, express the other number in terms of p.
Answers: 1
You know the right answer?
Baseball America has noticed the number of homeruns has been increasing in recent years in the MLB....
Questions
question
History, 29.11.2020 09:00
question
English, 29.11.2020 09:00
question
English, 29.11.2020 09:00
question
Chemistry, 29.11.2020 09:00
question
Mathematics, 29.11.2020 09:10
question
Chemistry, 29.11.2020 09:10
Questions on the website: 13722367