Hypothesis - Statistics

At one school, the average amount of time that tenth-graders spend watching television each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased. Formulate the null and alternative hypotheses for the study described.

  1. 👍
  2. 👎
  3. 👁
  1. Null:

    Ho: µ = 18.4 -->population mean is equal to 18.4

    Alternative:

    Ha: µ < 18.4 -->population mean is less than 18.4

    1. 👍
    2. 👎
  2. At one high school, the average amount of time tenth-graders spend watching television each week is The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. math...

    Julia is allowed to watch no more than 5 hours of television a week. So far this week, she has watched 1.5 hours. Write and solve an inequality to show how many hours of television Julia can still watch this week. I did.

  2. math

    Clovertown students attend school five days a week for thirty-six weeks. Each school day is six hours long. How many hours do students spend in school each year?

  3. Language

    1 While television can be entertaining and educational, it also has a dark side, especially for children. On average, children spend nearly 4 hours a day watching television. The harmful effects of television viewing far outweigh

  4. algebra question

    Please help me on this!!! so confused The table below shows data from a survey about the amount of time high school students spent reading and the amount of time spent watching videos each week (without reading): reading video 5 1

  1. math

    Oakland Middle School has 128 6th graders, 121 7th graders , and 135 8th graders. If there are 3 teachers per 32 students, how many total teachers are there?

  2. math

    Oakland Middle School has 128 6th graders, 121 7th graders , and 135 8th graders. If there are 3 teachers per 32 students, how many total teachers are there?

  3. math

    A sixth-grade class has 20 total students, while the entire middle school has 1,000 students. A census is taken of the entire school’s population to see on which day of the week every student was born. Theoretically, 14.3%, or

  4. math

    Could someone please show me how to do these problems? I would really appreciate any help you could give... There are examples in my lesson but I don't understand them, here are the examples~~ EXAMPLE~ Solve 3(x – 2) + 4 > 2(2x

  1. linear functions

    A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 60 dumpster loads of waste removed. In week 10, there were 40 dumpster loads removed. Assume that the reduction in the

  2. Language

    While television can be entertaining and educational, it also has a dark side, especially for children. On average children spend nearly 4 hours a day watching television. The harmful effects of television viewing far outweigh any

  3. Math

    Mrs. leal sponsors The Spanish club at Central middle school. The club has eight members who are sixth graders, 12 members who are seventh graders and 10 members who are eighth graders what percent of the Spanish club members are

  4. Statistic

    TABLE 12-11 Parents complain that children read too few storybooks and watch too much television nowadays. A survey of 1,000 children reveals the following information on average time spent watching TV and average time spent

You can view more similar questions or ask a new question.