Instructions: Using the information given, determine whether a normal approximation is appropriate, and then answer the questions. 7% of all people in a certain geographic region are unemployed. A sample of 300 people are surveyed. Let widehatp represent the sample proportion of unemployed people in a certain geographic region. Is a normal approximation appropriate? Why or Why not? Yes, because npz10 and nqs10. What is the mean of the sampling proportion?

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: From the provided information, Confidence level = 95% Margin of error (E) = 0.04

Q: In Exercise, we have provided simple data sets for you to practice the basics of finding measures of…

A: According to the provided information, a sample of 5 observation are givenThe range is defined as…

Q: In Exercise, we have provided simple data sets for you to practice the basics of fiinding measures…

A: Range:Range is the difference between maximum and minimum value in a data set.In the given data set,…

Q: A simple data set has been provided to practice the basics of finding measures of variation. For the…

A: Data-  8​,4​,6​,5​,7   a) range is the difference of maximum observation from data - minimum…

Q: Lengths of a random sample of 15 rivers on the South Island of New Zealand that flow to the Tasman…

A: According to the given information in this questionWe need to find mean MedianAnd Mode

Q: The mean weight of a class of 35 students is 45 kg. If the weight of the teacher be included, the…

A: Given, The mean weight of a class of 35 students is 45 kg.

Q: 18 16 19 20 18 19 23 54 20 16 18 19 18 19 18 40 30 19 18 38

A: The given data is 18,16,19,20,18,19,23,54,20,16,18,19,18,19,18,40,30,19,18,38

Q: Describe the sampling distribution of p. Assume the size of the population is 30,000. n= 1400, p =…

A: Given information, n=1400 and p=0.113

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.