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May ran a race. she paused for a water 25% of the way through the race. she stop to tie her shoe 40% of the wqy. her friends were cheering her 90% of the way through the race. draw a diagram to show were these events took place?

Answers

  • Réponse publiée par: jbaningzzz
    Confidence interval for the population mean
    z-test or normal distribution
    solution:
    given:  
    n=20, x̄ =89, s=2.0, 99% 
    formula:
    x̄ -z_alpha/2(s/square root of n)< µ< x̄ +z_alpha/2(s/square root of n)
    89-(2.575)(2.0/square root of 20)< µ< 89-(2.575)(2.0/square root of 20)
    87.848< µ< 90.152

    margin of error:
    solution:
    the critical value is 2.575.
    the standard deviation is 2.0 (from the question), but as this is a sample, we need the standard error for the mean. 
    the formula for the se of the mean is  standard deviation / √(sample size), so: 2.0/ √(20)=0.447.
    me=2.575 * 0.447 = 1.151.

    therefore, the margin of error is 1.151  with the confidence interval of 87.848< µ< 90.152.
  • Réponse publiée par: danigirl12

    answer:

    by their experience and knowledge about this work experience

    step-by-step explanation:

    because if their are teachers included they must show their skills and knowledge about this position

  • Réponse publiée par: reyquicoy4321

    answer:

    step-by-step explanation:

    i dont know answer

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May ran a race. she paused for a water 25% of the way through the race. she stop to tie her shoe 40%...