### A candy bar manufacturer desires to set up a variables

Assignment Help Basic Statistics
##### Reference no: EM1317482

To draw the 3-sigma X-bar chart and R-chart parameters.

A candy bar manufacturer desires to set up a variables control chart for the net weight of its candy bars. It is not exactly clear what charts should be used. A total of 60 candy bar weights (in grams) were obtained and are displayed in the following table.

 Sample Number Candy Bar 1 Candy Bar 2 Sample Number Candy Bar 1 Candy Bar 2 1 62.671 61.740 16 61.228 62.239 2 62.246 62.381 17 62.305 61.37 3 61.545 59.456 18 61.286 61.483 4 62.233 61.409 19 61.557 61.477 5 59.108 61.664 20 62.147 61.476 6 61.415 60.276 21 62.333 61.675 7 61.872 61.979 22 60.608 63.635 8 62.197 61.308 23 60.907 60.126 9 60.603 61.228 24 60.89 60.231 10 62.007 61.305 25 63.044 60.430 11 61.171 59.542 26 60.677 61.664 12 62.323 61.751 27 61.284 62.112 13 60.707 61.921 28 60.343 61.068 14 62.467 60.445 29 61.42 61.122 15 59.711 60.881 30 62.146 60.837

a.      Set up the 3-sigma X-bar chart and R chart parameters, centerline, and the control limits (n=2).

### Write a Review

#### Standard error for the proportion

Let p represent the proportion of registered voters in the state that would vote for the Republican candidate. The standard error for the proportion of those who phoned in who answered "yes" is

#### Hypotheses test-equality of two means

He would like to determine whether there are more units produced on the afternoon shift than on the day shift.

#### Testing our research hypothesis

Discuss possible study designs. Which of the designs would we use to test our research hypothesis?

#### Testing company-s claim

From past data, it is recognized that company's production process results in normally distributed yield strengths. Test company's claim at a = 0.05.

#### Twotail test to claim average cottage cheese consumption

Which of following statements would be right concerning a twotail test at 0.05 level of significance? We can conclude that average cottage cheese consumption in America is at least 0.705 pound more or less than 2.75 pounds per person per year.

#### Find a confidence interval for the difference

There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval for the difference in the proportion of defectives.

#### Consideration of a variable

Which of the following(s) can be considered (a) variable(s)?

#### Contingency table or cross table

What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?

#### Discrete probability distributions

The so-called "Gambler's Fallacy" makes the mistake of not recognizing:

#### What is the estimate of the overall proportion

We want to know if his support has decreased. In computing a test of hypothesis with , what is the estimate of the overall proportion?

#### Detrermining standard error of the mean

Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.

#### Depends on the satellite informationwhat is the expected no

Depends on the satellite information illustrate what is the expected number µ of real forest fires on the Seward Peninsula.