Question

In: Statistics and Probability

Part II Based on our analysis of our sample data, we are asked to perform a...

Part II

Based on our analysis of our sample data, we are asked to perform a formal hypothesis test (test of significance) to examine if the average sodium content of all Jupiter Bars may actually be more than 96 milligrams.

1) Develop the correct null and alternative hypotheses using standard statistics symbols, using words, or using both.

2) Based on the context of the question we are investigating and the nature of our sample data:

a) Determine if using a normal distribution or a t distribution for the calculations is appropriate. Hint: consider the sample size.

b) State any assumptions or conditions regarding your sample and/or the population that are necessary for the test procedure you have chosen.

c) Using Statkey, find and record the correct p-value here to 4 decimal places, if the Z- or t- (whatever you chose in a) above) statistic = 3.209.

                                p value =

e) Using a significance level of 3% (alpha = 0.03), state clearly if you reject the null hypothesis or fail to reject the null hypothesis.

Solutions

Expert Solution


Related Solutions

Part C—August Variance Analysis During September of the current year, the controller was asked to perform...
Part C—August Variance Analysis During September of the current year, the controller was asked to perform variance analyses for August. The January operating data provided the standard prices, rates, times, and quantities per case. There were 1,500 actual cases produced during August, which was 250 more cases than planned at the beginning of the month. Actual data for August were as follows: Actual Direct Materials Price per Unit Quantity per Case Cream base $0.016 per oz. 102 ozs. Natural oils...
Part 3: Risk analysis and project evaluation 3.1 Perform a scenario analysis on the data provided...
Part 3: Risk analysis and project evaluation 3.1 Perform a scenario analysis on the data provided Case Study: Assume that the company, where you are working as a team in Financial Department, is considering a potential project with a new product that is expected to sell for an average price of $22 per unit and the company expects it can sell 650 000 unit per year at this price for a period of 4 years. Launching this project will require...
Part II. Indicate whether you would perform a z test, two-sample t test, paired t test,...
Part II. Indicate whether you would perform a z test, two-sample t test, paired t test, or ANOVA for the following research question? All the outcomes are continuous variables.   A group of adolescent boys was offered interpersonal skills counseling and then tested in September and May to see if there was any impact on family harmony. 3 groups of participants were exposed to different levels of treatment for ankle sprain. Which treatment was more effective? 1 group of men was...
A random sample of 20 subjects was asked to perform a given task. The time in...
A random sample of 20 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below: 49, 26, 46, 40, 37, 39, 33, 47, 31, 35, 39, 43, 28, 38, 41, 29, 38, 34, 45, 41 If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task. Then complete the table below. Carry your...
As an economist, assume that you are asked to perform a cost-benefit analysis of meat production...
As an economist, assume that you are asked to perform a cost-benefit analysis of meat production and consumption. What is the costs of producing industrialized meat? Explain who bears each of the costs. List the benefits of producing industrialized meat. Who bears the benefits?
Problem 1 You are asked to perform a capacity analysis for the clinic. The current resources...
Problem 1 You are asked to perform a capacity analysis for the clinic. The current resources of the clinic are as follows (assume that the information is steady throughout the day): Resources Number of Service Providers Processing Time (min/patient) Reception 3 5 Primary care provider 10 20 Nurse 3 30 Radiologist 2 40 Diabetes care 1 30 Nutrition care 1 25 In addition, the following information is presented to you on the operations of the clinic. • All patients need...
The most common experimental technique to perform elemental analysis is combustion analysis, where a sample is...
The most common experimental technique to perform elemental analysis is combustion analysis, where a sample is burned in a large excess of oxygen and the combustion products are trapped in a variety of ways. A 99.99% pure, 0.4831 g sample containing only carbon, hydrogen, and nitrogen is subjected to combustion analysis, resulting in the formation of 1.353 g CO2, 0.2750 g H2O, and 0.1833 g NO. What is the empirical formula of the sample?
manufacturer of safety helmets. Your boss has asked you to perform a comprehensive analysis of the...
manufacturer of safety helmets. Your boss has asked you to perform a comprehensive analysis of the company’s financial statements, including comparing Lydex’s performance to its major competitors. The company’s financial statements for the last two years are as follows: Lydex Company Comparative Balance Sheet This Year Last Year Assets Current assets: Cash $ 1,040,000 $ 1,280,000 Marketable securities 0 300,000 Accounts receivable, net 3,020,000 2,120,000 Inventory 3,680,000 2,300,000 Prepaid expenses 270,000 210,000 Total current assets 8,010,000 6,210,000 Plant and equipment,...
You are asked to perform financial ratio analysis, including the use of Du Pont       equation, to...
You are asked to perform financial ratio analysis, including the use of Du Pont       equation, to analyze the underlying cause for recent deteriorating performance of       East Inc. Based on the information provided below, answer the questions. Income Statement (in $ million)           Net sales                                                   800           Cost of Goods Sold                                          696           Operating Expenses (including income taxes)               80         Net Income                                                            24                   Balance Sheet           Cash and Marketable Securities        45              Account Payable           50           Account Receivable                      90              Short-term Debt           60           Inventory                        160             Accrued Expenses            20           Long-lived Assets                         150            Long-term Debt            25                                                 Stockholder's Equity      290           Total Assets                              445             Liabilities and Equity       445                              Definition of Financial...
A nationwide sample of influential Liberals and Conservatives was asked as a part of a comprehensive...
A nationwide sample of influential Liberals and Conservatives was asked as a part of a comprehensive survey whether they favoured lowering environmental standards so that high-sulphur coal could be burned in coal-fired power plants. The results were: Liberals Conservatives Number sampled 511 679 Number in favour 41 85 At the 0.02 level of significance, can we conclude that there is a larger proportion of Conservatives in favour of lowering the standards? Calculate and interpret the p-value. c. Compute the value...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT