Question

Asked Nov 12, 2019

145 views

Suppose that an independent research company was tasked with testing the validity of complaints against a pesticide manufacturing firm for under-filling their 20 lb bags of pesticide. Past experience has shown that the amount of pesticide dispensed by the machines that fill the bags follows a normal distribution with a mean of 20 lb and a standard deviation of 0.6 lb.

To verify the validity of the complaints, a researcher randomly selected 16 of the firm's 20 lb pesticide bags and recorded the following weights.

19.69, 19.5, 18.85, 18.56, 20.23, 20.3, 20.14, 19.11, 19.65, 18.87, 19.22, 19.24, 18.82, 20.23, 20.46, 18.66

The mean weight of the 16 bags collected was 19.471 lb. Calculate the value of the one-sample z‑ statistic.

Give your answer precise to three decimal places.

Step 1

Given

The total number of bags collected = 16 = n

The mean weight of 16 bags = 19.471 lbs

Th...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: I have attached a picture of the question. Please only answer section A, B, and C.

A: Parts a and b:Part a:Denote μ as the true mean score after the new study skills program. The nationa...

Q: The accompanying data represent the total travel tax (in dollars) for a 3-day business trip in 8 ran...

A: Given data

Q: I missed class so I am missing notes for this section and I am needing more help than the textbook e...

A: 12) The appropriate Null and Alternative Hypotheses are given below: From the given information, the...

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognit...

A: Obtain the critical value at 95% confidence level:It is given that the confidence level is 0.95 and ...

Q: • Investment in 5 Internet business ventures • The number of successful ventures has a probability d...

A: The random variable X denotes the number of daily newspapers a person reads per day. The formula for...

Q: The Centers for Disease Control reported the percentage of people 18 years of age and older who smok...

A: It is given that margin of error (E) is 0.02 and the confidence level is 95%.Here,

Q: Please show ti 84 steps

A: (a) The random sample, n is 14, the standard deviation is 20.7 and the sample mean is 20.6. The conf...

Q: The percent of fat calories that a person in America consumes each day is normally distributed with ...

A: a.It is given that the percent of fat calories follows normal distribution with mean 38 and standard...

Q: A company is studying the number of monthly absences among its 125 employees. The following probabil...

A: Given data