A study done in 1997 showed that 4.7% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this percentage is higher now. To test this, the obstetrician takes a sample of 150 mothers and fınds that 9 of them smoked during their pregnancy. Test the obstetrician's claim at the a=0.05 level of significance. Write your answer in the following form P-Value, Conclusion Example: 0.15, There is not sufficient evidence that the mean weight of pandas is less than 200 pounds. Edit View Insert Format Tools Table 12pt v Paragraph v IUA ev T? v ...

A study done in 1997 showed that 4.7% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this percentage is higher now. To test this, the obstetrician takes a sample of 150 mothers and fınds that 9 of them smoked during their pregnancy. Test the obstetrician's claim at the a=0.05 level of significance. Write your answer in the following form P-Value, Conclusion Example: 0.15, There is not sufficient evidence that the mean weight of pandas is less than 200 pounds. Edit View Insert Format Tools Table 12pt v Paragraph v IUA ev T? v ...

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A research report from an independent-measures study states that there are significant differences…

A: a)From the given information, the degrees of freedom treatment is 3.

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 218 women,…

Q: A dietician read in a survey that 85.36% of adults in the U.S. do not eat breakfast at least 3 days…

Q: An attorney claims that more than 25% of all lawyers advertise. A sample of 200 lawyers in a certain…

A: Claim:p>0.25 n=200 x=63 p∧=xn=63200=0.315 α=0.05 ∴H0: p=0.25 H1: p>0.25…

Q: given as + Choose th

A: The margin of error is the amount of random sampling error in the results of a survey. The larger…

Q: A publisher reports that 65% of their readers own a laptop. A marketing executive wants to test the…

A: Here the given information is A publisher reports that 65% of their readers own a laptop. A…

Q: sample of 1500 computer chips revealed that 26% of the chips fail in the first 1000 hours of their…

A: Given data sample size, n =1500 population proportion,p= 0.25 sample proportion…

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

Q: Assume you are a psychologist studying the relationship between chocolate consumption and happiness.…

A: For the given data Is this a one-tailed or two-tailed test

Q: How to calculate the "P-value" by hand?

A: To calculate the p-value, we first need to perform a linear regression analysis on the given data,…

Q: According to a survey conducted by the Association for Dressing and Sauces, 85% of American adults…

A: Given, p0 = 0.85 n = 200 x = 171

Q: According to a survey conducted by the Association for Dressing and Sauces, 85% of American adults…

A: Given, P0 = 0.85 n= 200 x = 171

Q: students typically walk to school. DeAnna thinks that the proportion is higher than 0.13 at her…

A: Given that Sample size n =100 Favorable cases x =17 Sample proportion p^=x/n =17/100 =0.17

Q: If I were to calculate the z-score for your final grade in this class, which z-score would you least…

A: If I were to calculate the z-score for your final grade in this class, which z-score would you least…

Q: A research report from an independent-measures study states that there are significant differences…

A: From the provided data we have, Degrees of freedom between group = k-1 = 2 Thus, k = 3 Degrees of…

Q: 14) A nationwide study of American homeowners revealed that 64% have one or more lawn mowers. A lawn…

Q: While her husband spent 2½ hours picking out new speakers, a statistician decided to determine…

Q: A nationwide study of American homeowners revealed that 65% have one or more lawn mowers. A lawn…

A: The sample size is 497 and the test is right tailed.

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: Here Avg height of 25 girls in the Same class is difference from population mean is checked Here…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Denote p1, p2 as the true population proportions of men and women who own cats, respectively.

Q: A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male…

Q: Please answer number 13.

A: It is given that 43% had no children, 18% are had one child, 18% are have two children, 21% have…

Q: Assume that the average home price in the U.S. is µ = $292,700 with o = $60,000. A local real estate…

A: Hypothesis: The null and alternative hypotheses are below: H0: μ=292,700H1: μ>292,700 The test…

Q: The Congressional Budget omoe reports that 3s of federal dvilan employees have a bachelors degree or…

A: Proportion z_test: If the given sample size is more than 30 then that is a large sample test. z test…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A: From the provided information, Sample size (n) =750 and p0 = 0.54

Q: While her husband spent 2½ hours picking out new speakers, a statistician decided to determine…

Q: In the past, 70% of the tourists who visited Dubai went to see Burj Khalifa. The management of Burj…

A: From the provided information, In past, 70% of the tourists who visited Dubai went to see Burj…

Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

A study done in 1997 showed that 4.7% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this
percentage is higher now. To test this, the obstetrician takes a sample of 150 mothers and finds that 9 of them smoked during
their pregnancy. Test the obstetrician's claim at the a=0.05 level of significance.
Write your answer in the following form P-Value, Conclusion
Example: 0.15, There is not sufficient evidence that the mean weight of pandas is less than 200 pounds.
Edit View Insert
Format Tools
Table
12pt
Paragraph v
BIU
Av2v T2く
v E v Pv
...

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Basics of Inferential Statistics$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

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:
While her husband spent 2½ hours picking out new speakers, a statistician decided to determine whether the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment. The population was Saturday afternoon shoppers. Out of 67 men, 25 said they enjoyed the activity. 6 of the 25 women surveyed claimed to enjoy the activity. Interpret the results of the survey. Conduct a hypothesis test at the 5% level. Let the subscript m = men and w = women.NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) What is the p-value? (Round your answer to four decimal places.)
Twenty years ago, 47% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 293 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.01 level of significance. Because npo (1- Po) =U 10, the sample size is 5% of the population size, and the sample the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.)
Twenty years ago, 51% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 309 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.01 level of significance. Because npo (1- po) = 243.5 > 10, the sample size is less than 5% of the population size, and the sample is given to be random, the requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: 51 versus H1: 51 (Type integers or decimals. Do not round.) Find the test statistic. Zo = 1.96 (Round to two decimal places as needed.) Find the P-value. P-value = .025 (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the…
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 281 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.1 level of significance. C... Because npo (1-Po) 4 = 10, the sample size is 5% of the population size, and the sample ▼satisfied. the requirements for testing the hypothesis (Round to one decimal place as needed.). Clear all Help me solve this Get more help . H Type here to search a ? 3 AS E 4 View an example O Bi R V 5 T G 6 B a H N 8 S a hp M 9 O P Check answer 12:55 PM ^ 6/18/2022 94°F Mostly sunny
Twenty years ago, 53% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 327 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.01 level of significance. Because npo (1-Po) =O > 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis satisfied. are (Round to one decimal place as needed.)
Help with homework
Find the p-value in a test of the claim that the mean College Algebra final exam score of engineering majors equal to 88, given that the test statistic is z= 1.50. O A. 0.1336 O B. 0.9331 OC. 0.1500 D. 0.0668 Click to select your answer. F10 000 ODO F7 F8 F9 esc F4 F5 F6 F1 F2 F3 % & %24
X10.2.21-T Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 247 of 700 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a=0.01 level of significance. Because npo (1- Po) = 172.5 > 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? versus H,: Ho: (Type integers or decimals. Do not round.)
The CEO of a large electric utility claims that at least 80 percent of his one million customers are very satisfied with the service they receive. A local newspaper surveyed 300 customers randomly. 73 percent said they were very satisfied. The test statistic is (Round answer to two decimal places. Do not write 0.12 as .12.)
A study done in 1997 showed that 4.2% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this percentage is higher now. To test this, the obstetrician takes a sample of 200 mothers and finds that 10 of them smoked during their pregnancy. Test the obstetrician's claim at the a=0.05 level of significance. Write your answer in the following form P-Value, Conclusion Example: 0.15, There is not sufficient evidence that the mean weight of pandas is less than 200 pounds. Edit View Insert Format Tools Table 12pt v Paragraph v BIUA e T?u 画① O words ņ V12 96 5n SO F H. B N2
topic is Hypothesis test for proportions. I already answered most of the question. Please help me fill the rest. Thanks