Newest questions posted by lisa
  1. Math146

    You wish to test the following claim (Ha) at a significance level of α=0.001. Ho:μ=69.1 Ha:μ<69.1 You believe the population is normally distributed and you know the standard deviation is σ=8.8. You obtain a sample mean of ¯x=67 for a sample of
  2. Math

    In a survey, 20 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $2. Find the margin of error for a 99% confidence level.
  3. Math

    Sofa is on sale for 28% off. Sale price is $666.00. What is regular price?
  4. Math

    What is 48,567kilo in metric tons? Im in 4th grade no judge
  5. maths

    We define two numerical operations labeled T and R. The effect of T is to add 1 to a number. For example, if we apply the operation T to the number 2 three times in a row, we obtain 3, then 4, then 5. The effect of R is to find the negative reciprocal of a


Newest responses posted by lisa
  1. maths

    3+3+3+3+3+2+2=19, 3^5x2^2=972
  2. Intermediate Algebra

  3. math

    Please help me with this? I’m clueless
  4. Math

  5. Math