Listed below are the amounts of mercury (in parts per million) found in tuna sushi sampled at different stores. the sample mean is 1.056 ppm and the sample standard deviation is 0.273 ppm. use technology to construct a 90% confidence interval estimate of the mean amount of mercury in the population.

0.53 1.15 0.93 1.29 0.97 1.28 1.24

what is the confidence interval estimate of the mean amount of mercury in the population?

Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?

How much is $1200 worth at the end of1 year, if the interest rate is 5.5% is compounded quarterly.