Construct your own story problem using the data below, answer it. X= 148 E = 0.91 95% level of confidence
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Q: 90% confidence
A: n = 130 x= 69 p'=xn=0.5307 p=p' ±Zαp'(1-p')n =0.5307±1.645*0.04377=0.5307±0.07200=(0.458,0.6027)
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- - ? is also called Select one: Oa. Confidence coefficient Ob. Level of significance Oc. Size of the test d. Power of the testYou are a data scientist investigating a new dataset you just received. After some preliminary analysis, you discover that the dataset has a median of 81.45, a Q3 of 86.71, and an IQR of 10.05. Use this information to create a boxplot diagram. What is the value of the lower fence? Note: 1- Only round your final answer. Round your final answer to two decimal places.You are a researcher studying a certain species of fish in a local lake. You gather a random sample of 19 fish of this species and record the lengths (in centimeters) of the fish. The data is displayed in the table below. Estimate the mean length of all fish of this type in the lake. Use a 99% confidence level. 9.1 9 8.6 5.8 9.8 7.4 9.1 9.5 8.2 8.9 9.3 7.8 9 9.6 10.4 13.6 7.2 10.1 8.9 a) Find the confidence interval: b) What is the margin of error of your interval? c) Interpret your 99% confidence interval in context
- please answer within 15 minutes, thank you!See the graph of data below to answer the following question Obtain a 95% confidence interval for the difference between the mean rates of return. Interpret the interval.Below is a research question, please answer the following question. After it is solved, you can simply replace the highlighted sentences (the format you should follow, please follow the highlighted sentence format) with the correct answer.
- homework helpThe mean and median both estimate the "average" of a sample. In 2020, the US mean and median net compensations were approximately $53,383 and $34,612, respectively. What does the difference between the mean and median imply for the distribution of incomes in the US? (Use the term "skew" correctly in your answer)You are a researcher studying the antler size of male Alaskan Moose in a certain Alaska location. You gather a random sample of 18 male moose and record the width (in feet) of the antlers. The data is displayed in the table below. Estimate the mean antler width of all Alaskan male moose in this area. Use a 90% confidence level. 3.6 5.6 3.4 3.4 4 5.2 4.6 4.3 4.6 4.6 2.2 6.4 3.6 3.1 5.4 4.4 3.3 4.3 a) Find the confidence interval: < μμ < b) What is the margin of error of your interval? c) Interpret your 90% confidence interval in context.
