According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary medical care. Use the z-table.a. Suppose a sample of 390 primary care doctors was taken. Show the sampling distribution of the proportion of the doctors who think their patients receiveunnecessary medical care.E(p)=(to 2 decimals)(to 4 decimals)b. What is the probability that the sample proportion will be within +0.03 of the population proportion? Round your answer to four decimals.c. What is the probability that the sample proportion will be within 10.05 of the population proportion? Round your answer to four decimals.d. 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 - This is because the increase in the sample size makes the standard error, ,- Select your answer - ✪

Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Answered: According to Reader's Digest, 50% of…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A survey was taken of the heights, in inches, of 20- to 29-year-old males.A simple random sample of n=15 males 20 to 29 years old results in the data in the table. Construct a 95% t-interval about the population mean. Decide if a 95% t-interval can be constructed about the population mean. If not, state the reason why 65.9 65.4 72.2 73.5 68.1 O A. At-interval can not be constructed because there is an outlier. 73.3 69.5 68.5 71.3 70.2 72.3 66.4 67.9 70.1 O B. At-interval can not be constructed because the data is not normal. 67.7 O C. At-interval can be constructed. For convenience, a normal probability plot and boxplot are given. Percent 75- 50- 25- 0- 60 70 80 65 Height Height
The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70, what is the standard deviation of the sampling distribution?
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A sample of 276 people was surveyed. People are classified according to their political ideology ("left", "right" or "center"). They are also classified according to their opinions regarding a bill ("in favor", "against" or "indifferent"). The results are indicated in the following contingency table. Among right-wing respondents, what is the relative frequency of those who are indifferent to the bill? Round your answer to two decimal places.
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should have the right to marry. (The 2014 data were collected before the 2015 U.S. C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals 30 measured on a 5-point scale from strongly agree (1) to strongly disagree (5). Supreme Court decision granting same-sex couples the right to marry. Responses wer measured on a 5-point scale from strongly agree (1) to strong!y aisagiee (2). Cumulative Percentage Homosexuals Should Have Right to Marry (2014) Percentage Frequency 32.5 32.5 Strongly agree 251 57.5 25.2 Agree 195 67.3 Neither agree nor disagree 9.6 74 79.2 Disagree 92 11.9 100.0 Strongly disagree 161 20.8 Total 773 100.0 Homosexuals Should Have Cumulative Right to Marry (2018) Frequency Percentage Percentage Strongly agree 293 39.5 39.5 Agree 200 27.0 66.5 Neither agree nor disagree 70 9.4 75.9 Disagree 67 9.0 84.9 Strongly disagree 111 15.0 99.9 Total 741 99.9 a. What is the level of measurement for this variable? b. What is the mode for 2014? For 2018?
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In a study about children's pocket money, two samples of schoolchildren were asked how much money they received each week. In one sample, of size 87, the mean is £7.78. In the other sample, of size 65, the mean is £11.77. Calculate the mean based on the combined sample. Give your answer correct to two decimal places. (Do NOT include the '£' sign in your answer.) Answer:
Español Ten percent of the world's population is left-handed. A researcher claims that left-handed individuals are more creative than those who aren't left-handed. In order to support his claim, he takes a sample of 900 artists and finds that 11 % of them are left-handed. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p is the proportion of left-handed individuals in a random sample of 圖 900. 0.10 (b) Find the standard deviation of p. 0.01 Aa (c) Compute an approximation for P(p<0.11 ), which is the probability that there will be 11 % or fewer left-handed people in a random sample of 900. Round your answer to four decimal places. AM svg Explanation Check © 2022 McGraw Hill LLC. AlI Rights Reserved. Terms of Use | Privacy Center| Accessibility **** . ... MacBook Air DII 80 F9 F10 F11 F4 FS F6 F1 F2 F3 @ 23 $ & 4 7 Q E R T Y P
A survey of 100 fatal accidents showed that 26 were alcohol related. Find a point estimate for p, the population proportion of accidents that were alcohol related. O A. 0.351 ОВ. 0.74 O C. 0.206 O D. 0.26
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