Question

Step 1

In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005. Using this we have to find the sample size.

Step 2

The complete calculation for confidenceinterval is given on whiteboard.

The value at 0.005 for two tailed which ultimately at 0.0025 is not given in table “Percentage poin...

Tagged in

Q: Let A and B be two events with P(A) = 0.71 and P(B) = 0.44. What is the smallest possible value of P...

A: According to the given question, A and B be two events with probability P(A)=0.71 and P(B)=0.44 the...

Q: (c) Explain why four students coming in late would not necessarily form a random sample. (Select all...

A: (c)A random sample represents the whole population properly.It can happen that some students will be...

Q: Use the normal approximation to the binominal to approximate the probabilities. *Using A Ti-84 Calcu...

A: Normal approximation to the binomial:From the given information, it is clear that n = 120The probabi...

Q: How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in te...

A: (a)Using the provided data, the sample mean and standard deviation can be calculated using Excel fun...

Q: Please answer the whole question (2) Let x be the age of a licensed driver in years. Let y be the p...

A: (a) Scatter diagram of the data:The scatter diagram for the given data that is obtained using EXCEL ...

Q: A personnel director in a particular state claims that the mean annual income is the same in one of ...

A: According to the given question, in order to test that the annual income is the same in one of the ...

Q: A random sample of 30 binomial trials resulted in 12 success. Test the claim that the population por...

A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three s...

Q: A recent poll by the American Automobile Club found that 74.5% of those surveyed are worried about a...

A: From the provided information we have the following values:Probability that a person worried about a...

Q: In a recent survey it was stated that Americans watch television on average four hours per day. Assu...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Sorry about that. What wasn’t helpful?