A quality control technician is checking the weights of a product. She takes a random sample of 8 units and weighs each unit. The observed weights are shown below. Assume the population has a normal distribution. Weight
50
48
55
52
53
46
54
50

Provide a 98% confidence interval for the mean weight of the units. Enter here the UPPER limit of the confidence interval. Copy the answer from Excel so it is accurate to at least four decimal places.

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Which number produces a rationale number when multiplied by 1/5

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).