Acandy factory that produces chocolate bars claims each bar weighs 50 grams, at least that is what is printed on the label. of course, there is bound to be a little variation. an inspector randomly chooses 9 bars from one day's output of 4000 bars. the average weight of the 9 bars is only 47 grams. the inspector wishes to test the null hypothesis that the factory is doing what it is supposed to on this day against the alternative that the company is cheating the consumer. assume that the weights of all the candy bars that are produced follow the normal curve with a sd of 3 grams. a. which significance test should be used?

We use T-test to perform this hypothesis.                            

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 50 grams

Population standard deviation, σ = 3 grams

Sample mean, = 47 grams

Sample size, n = 9

First, we design the null and the alternate hypothesis

We use T-test to perform this hypothesis. because the sample size is 9 which is less than 30, hence it does not follows a normal distribution.

Formula:

77

step-by-step explanation:

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.