To assess the accuracy of a metallurgical laboratory scale, a standard weight that is
known to weigh 1 is repeatedly weighed four times. the resulting
measurements (in grams) are: 0.95, 1.02, 1.01, and 0.98. assume the weightings by
the scale when the true weight is 1 are normall distributed with mean .
(i) use these data to construct a 95% confidence interval for �

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean

Find the measure of anglec in the following triangle