Astudent believes that the average grade on the statistics final examination is 87. a sample of 36 final examinations is taken. the average grade in the sample is 83.96 with a sample standard deviation of 12. carry out the hypothesis testing that the real mean is less than 87. use a 0.05 level of significance.

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample