Mathematics, 17.04.2020 01:26, sti192
A statistician wishing to test a hypothesis that students score at least 75% on the final exam in an introductory statistics course decides to randomly select 20 students in the class and have them take the exam early. The average score of the students on the exam was 78%. The hypothesis the statistician wants to test is .
a) H0: μ = 75 vs. Ha: μ > 78b) H0: μ = 75 vs. Ha: μ < 75c) H0: μ = 75 vs. Ha: μ = 78d) H0: μ = 75 vs. Ha: μ > 75
Answers: 2
Mathematics, 21.06.2019 22:30, BigGirlsTheBest
At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?
Answers: 1
Mathematics, 21.06.2019 22:30, cbkhm
Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?
Answers: 1
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