posted by .

an automobile manufacturer claims that their tires last more than 70,000 miles before replacement? Whats the null and alternative hypothesis

  • Statistics -

    Ho: x ≥ 70,000
    Ha: x < 70,000

  • Statistics (oops) -

    Ho: x > 70,000
    Ha: x ≤ 70,000

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math-statistics

    A manufacturer claims that the life span of its tires is 50,000 miles. You work for a consumer protection agency and you are testing this manufacturer's tires. Assume the life spans of the tires are normally distributed. You select …
  2. Statistics

    Does the null hypothesis for a nondirectional alternative hypothesis differ from the null hypothesis for a directional alternative hypothesis?
  3. Statistics

    If my p-value = .322 and my significant level is .05 , then My Null Hypothesis is rejected and I must accept the Alternative hypothesis My Null Hypothesis is not rejected My Alternative hypothesis becomes the new Null Hypothesis I …
  4. Prob and Stat

    A tire manufacturer guarantess that its tires will last for at least 60,000 miles. If the tire fails earlier, the manufacturer offers a prorated replacement. Too many such replacements are bad for business, so the manufacturer tests …
  5. Statistics

    are the following statements, Ho:=10 and Ha:equal to or less than, a valid pair of null and alternative hypothesis?
  6. statistic

    one of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company beleives that the tire actually lasts more than 40,000 miles. A sample of 49 tires reveales …
  7. Statistics

    A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true?
  8. Behavioral Statistics

    I need someone to explain HOW to do this..I don't want just the answer I have got to figure out how to do this before my mid-term, and I'm completely clueless! 3. One of the major U.S. tire makers wishes to review its warranty for …
  9. statistics

    Your muffler factory claims to manufacture mufflers with a lifespan of more than 10000 miles of usage. A consumer group tests this claim at the 95 percent significance level, and finds that a sample of 64 mufflers have a mean lifespan …
  10. statistics

    A manufacturer claims that the mean lifetime of its lithium batteries is 1400 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1380 hours with a standard deviation of 80 hours. Test the manufacturers …

More Similar Questions