Nocaf Drinks, Inc., a producer of decaffeinated coffee, bottles Nocaf. Each bottle should have a net weight of 4 oz. The machine that fills the bottles with coffee is new, and the operations manager wants to ma sure that it is properly adjusted. Bonnie Crutcher, The Operations Manager, randomly selects and weighs. n = 8 bottles and rounds the average and range in ounces for each sample. The data for several samples is given in the following table. Note that every sample consist of 8 bottles.. 1. Find Grand X-Bar 2. Find R-Bar 3. Using the Sample Chart Locate Sigma 4. Using the UCL Formula insert the values into the formula SAMPLE SAMPLE RANGE SAMPLE AVERAGE A B C с D E F F G H .41 A2 = .373 55 .44 48 .56 UCL=X+A₂ (R) LCL X-A₂(R) UCL in Inches = .62 .54 44 4.00 4.16 3.99 4.00 4.17 3.93 3.98 4.01 Round Your Response Two Decimal Places UCL=D4(R) LCL =D, (R)

A company wanted to estimate the proportion of employees who use mass transit to get to work. The company conducted a survey of employees and 184 of 400 employees indicated they use mass transit to get to work. Find the standard error for the sample proportion of employees who use mass transit. Enter your answer as a decimal rounded to 3 decimal places. Select the correct answer below: a. 0.032 b. 0.460 c. 0.249 d. 0.025

A local college cafeteria has a self-service soft ice cream machine. The cafeteria provides bowls that can hold up to 16 ounces of ice cream. The food service manager is interested in comparing the average amount of ice cream dispensed by male students to the average amount dispensed by female students. A measurement device was placed on the ice cream machine to determine the amounts dispensed. Random samples of 85 male and 78 female students who got ice cream were selected. The sample averages were 7.23 and 6.49 ounces for the male and female students, respectively. Assume that the population standard deviations are 1.22 and 1.17 ounces, respectively. Using the 1% significance level, can you conclude that the average amount of ice cream dispensed by male college students is larger than the average amount dispensed by female college students?   State the null and alternative hypotheses.

Solve the problem.The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 6.5 to 8.5 millimeters. What is the mean diameter produced in this manufacturing process? Select one: A. 8.0 millimeters B. 7.5 millimeters C. 8.5 millimeters D. 7.0 millimeters

1. Calculate the water content (% by weight) of the sample.

An electronics manufacturer test every 300th cell phone to verify that it is functioning properly.Identify the kind of sample that is being used.

Rangers tagged and released 250 small mouth bass into a Round Lake. A month later, fishermen on the lake were surveyed. They reported catching 50 small mouth bass, 5 of which had tags. Using this sample, estimate the small mouth bass population in the lake.

c. Find the 95th percentile. (Round to three decimal places as needed.)

Please double check my answers.

I can't understand why the data is the percentage of surveyed parents.