Mathematics, 05.07.2020 14:01 tylerjoshonti
Researchers conducted a study to find out if there is a difference in the use of eReaders by different age groups. Randomly selected participants were divided into two age groups. In the 16- to 29-year-old group, 7% of the 627 surveyed use eReaders, while 11% of the 2,314 participants 30 years old and older use eReaders. Use a = 0.05. Required:a. State the null hypothesis. b. State the alternative hypothesis. c. State the distribution to use for the test. (Round your answers to four decimal places.) d. Determine the test statistic using your data. (Round your answers to two decimal places.) e. What is the p-value? (Round your answer to four decimal places.) Explain what the p-value means for this problem. f. Draw a graph and label it appropriately. Shade the actual level of significance. g. Do you or do you not reject the null hypothesis? Why? h. Write a clear conclusion using a complete sentence.
Answers: 2
Mathematics, 21.06.2019 13:30
If jm equals 5x -8 and lm equals 2x -6 which expression represents jl
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Mathematics, 22.06.2019 00:00
(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.
Answers: 1
Researchers conducted a study to find out if there is a difference in the use of eReaders by differe...
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