**Sampling Distribution and Probability Calculation**According to *Reader's Digest*, 38% of primary care doctors think their patients receive unnecessary medical care. Use the z-table for calculations.**a. Sampling Distribution**- Suppose a sample of 390 primary care doctors was taken. Show the sampling distribution of the proportion of the doctors who think their patients receive unnecessary medical care. \( E(\overline{p}) = \) [to 2 decimals] \( \sigma_{\overline{p}} = \) [to 4 decimals]**b. Probability Calculation 1**- What is the probability that the sample proportion will be within ±0.03 of the population proportion? Round your answer to four decimals. [Blank for answer]**c. Probability Calculation 2**- What is the probability that the sample proportion will be within ±0.05 of the population proportion? Round your answer to four decimals. [Blank for answer]**d. Effect of Larger Sample Size**- What would be the effect of taking a larger sample on the probabilities in parts (b) and (c)? Why? The probabilities would [Select your answer dropdown]. This is because the increase in the sample size makes the standard error, \( \sigma_{\overline{p}} \), [Select your answer dropdown].

Answered: Image /qna-images/answer/06a98695-c88d-418b-8b92-73dbeaf6858f.jpg

Answered: According to Reader's Digest, 38% of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose you send a survey to 500 people and get 233 responses. You then find that 86% of the responses prefer Coke instead of Pepsi Is the above 86% a parameter or statistic? a. parameter b. statistic
Calculate the proportion of the 100 samples that had at least five people own a dog. Round your answer to four decimal places. population is unknown p= .5967 n= 100
A. Determine the coefficient of determination, r2, and interpret its meaning. (Fill in the Blank) r2 = ___? (Round to four decimal places as needed.) B. What is the meaning of the coefficient ofdetermination? (Choose Below) A. It measures the variability in the actual plate gap from the predicted plate gap. B. It measures the variability in the actual tear rating from the predicted tear rating. C. It is the proportion of the variation in the plate gap that is explained by the variability in the tear rating. D. It is the proportion of the variation in the tear rating that is explained by the variability in the plate gap. C. Determine the standard error of the estimate. SYX = ___? (Round to four decimal places asneeded.)
The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months. A sample of 64 of these smartphones is taken. What is the distribution for the total length of time 64 batteries last? (Enter exact numbers as integers, fractions, or decimals.) X - ? v Additional Materials eBook
The data set shows the GDP per people in 24 countries, along with the proportion of person that have a linkedin social media account. A. the covariance is ___ percentage dollars. be careful of the units. round to the nearest integer. B. r= ___ c. Choose the correct answer below. A. There is no clear relationship between the GDP and LinkedIn accounts. B. There is a strong positive relationship between the GDP and LinkedIn accounts. C. There is a weak positive relationship between the GDP and LinkedIn accounts. D. There is a strong negative relationship between the GDP and LinkedIn accounts. GDP (PPP) Social Media Usage (%) 6,905 89 17,863 87 5,114 86 9,989 86 6,121 83 6,593 83 13,899 81 4,013 83 16,146 75 4,696 79 16,470 76 19,857 72 18,155 71 3,501 74 19,526 75 8,007 76 4,033 73 13,651 69 16,990 68 6,642 70 6,447 70 6,434 68 13,052 64 10,874 47
Save Suppose a random sample of n = 390 teenagers 13 to 17 years of age was asked if they use social media. Of those surveyed, 276 stated that they do use social media. Find the sample proportion of teenagers 13 to 17 years of age who use social media. The sample proportion is p= (Round to three decimal places as needed.)
Approximately 1.4% is not correct
n, where k is the percentile and n is the sample size. Given a sorted sample of 234 IQ scores, what is the value of the 40th percentile? 100 When finding the value of a percentile, the location of that value is L = Choose the correct answer below. O A. The 93rd IQ score in the sorted list O B. The 40th IQ score in the sorted list. O C. The 94th IQ score in the sorted list O D. The IQ score midway between the 40th and 41st scores in the sorted list.
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