The admission fee at a water park is $15.00 for children and $29.75 for adults. On a certain day, 321 people entered the park, and the admission fees collected totaled $7,396.25. How many children and how many adults were admitted? The number of children admitted was The number of adults admitted was Question Help: Video

A doctor is studying the effects that the amount of junk food has on blood pressure.  As each patient enters his office, he/she fills out a survey about junk food.  The doctor then takes the blood pressure of each patient.  Is this an experimental or observational study?  Explain your reasoning.

answer part a only in word  format exoplaing context and be desprictive please

Please explain how you got the "inference" question answer and explain why the others are incorrect and only one is correct.   Thanks

I am having trouble solving this problem.  Can you please provide me with some help?  Thank you.  I appreciate it. Kentrex, a maker of game consoles, wants to determine whether a proposed new advertising campaign will change gamers' perception of the brand.  To conduct the test, Kentrex selected a selected a panel of 6 game players and used an extensive questionnaire to measure brand perception before and after the panel is shown the new campaign through a series of ads.  Using the before-and-after brand perception scores in the table below and assuming that the appropriate population conditions are satisfied, construct a hypothesis test of the null hypothesis that there is no difference in average before-and-after scores for the populations.  Use a significance level of 5%. player 1 2 3 4 5 6 before 47 52 67 31 62 59 after 57 54 72 37 60 68

An understanding of statistics is necessary in any job. The use of statistics can help provide answers to many questions. Please, post a question you think that statistics may help you answer and explain why statistics can help provide an accurate answer. Read several of your classmates' postings. Do you agree that statistics are necessary to answer their questions? Is their question one that you would also like to have an answer to? Why or why not?

THIS IS PRACTICE TEST- The professor does not grade these. The program checks each question to ensure the student knows what the right answer is. Thank you

One of the categories of special education are children who are diagnosed with Speech/Language Impairment (SLI).  The most common SLI diagnosis is dyslexia.  A major difficulty for children with this diagnosis of dyslexia surrounds the skills of reading.  A special education teacher is interested in knowing whether a new reading technique increases reading skills for children diagnosed with dyslexia.  She uses the WRAT as a way of measuring reading skills and the average for this test is 55 with a standard deviation of 4.5.  She takes a random sample of 125 children diagnosed with dyslexia, employs her reading program with them and finds their mean on the WRAT to be 56.1.  Test the null hypothesis at the .05 level of significance.

IT'S NOT FOR A GRADE!! Please answer.

Last semester, Bonnie took a different Biology teacher than her friend Tony. After the final exam, they compared test scores. Bonnie earned an 83 (mean = 75.6, sd = 5), and Tony earned an 87 (mean = 80.3, sd = 7). Who did better? Why?