A random sample of 815 births included 434 boys. Use a 0.01 significance level to test the claim that 50.6% of newborn babies are boys. Do the results support the belief that 50.6% of newborn babies are boys? А. The results do not support the belief that 50.6% of newborn babies are boys; the results merely show that there is not strong evidence against the rate of 50.6%. В. The results support the belief that 50.6% of newborn babies are boys because there was sufficient evidence to show that the belief is true. С. The results support the belief that 50.6% of newborn babies are boys because there was no evidence to show that the belief is untrue. D. The results do not support the belief that 50.6% of newborn babies are boys because there was sufficient evidence to show that the belief is untrue.

A random sample of 815 births included 434 boys. Use a 0.01 significance level to test the claim that 50.6% of newborn babies are boys. Do the results support the belief that 50.6% of newborn babies are boys? А. The results do not support the belief that 50.6% of newborn babies are boys; the results merely show that there is not strong evidence against the rate of 50.6%. В. The results support the belief that 50.6% of newborn babies are boys because there was sufficient evidence to show that the belief is true. С. The results support the belief that 50.6% of newborn babies are boys because there was no evidence to show that the belief is untrue. D. The results do not support the belief that 50.6% of newborn babies are boys because there was sufficient evidence to show that the belief is untrue.

Name: A random sample of 815 births included 434 boys. Use a 0.01 significa
Uploaded: 2024-03-20T06:38:44.000Z
Channel: Bartleby
Description: A random sample of 815 births included 434 boys. Use a 0.01 significance level to test the claim that 50.6% of newborn babies areboys.Do the results support the belief that 50.6% of newborn babies are boys?А.The results do not support the belief tha

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

Similar questions

In a previous poll, 46% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 515 of 1172 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the a= 0.05 significance level. Because npo (1- Po) = V 10 and the sample size is V 5% of the population size, and the sample v the requirements for testing the hypothesis v satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: versus H, (Type integers or decimals. Do not round.) Find the test statistic, Zo- Zo (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Is there sufficient evidence that the proportion of families with children…
3. A producer claims that his potato chips weight is more than 150 grams. The weight of the bag has a normal distribution. Because of the complaints of the customers, quality control department select randomly 25 bags and find the mean as 146 grams and variance 9 grams. Test the manufacturer claim at 10 6 level of significance. Find the correct answer for the hypothesis and find the correct answer for critical value à) 6.67 b) Ho: u 150 H:4 150 H : 4 150 Hạ: u= 150 H:u 150 h) -2.22
A researcher claims that the incidence of a certain type of cancer is less than 5%. To test this claim, the a random sample of 4000 people are checked and 170 are determined to have the cancer. In this example, the p-value was determined to be 0.015. Come to a conclusion and interpret the results for this hypothesis test for a proportion (use a significance level of 5%)
3. Dentists make many people nervous. To assess any effect of such nervousness on blood pressure, the systolic blood pressure of 60 subjects was measured both in a dental setting and in a medical setting (The Effect of the Dental Setting on Blood Pressure Measurement," Amer. J. of Public Health, 1983:1210- 1214). For each subject, the difference between dental setting pressure and medical setting pressure was computed; the resulting sample mean difference and sample standard deviation of the differences were 4.47 and 8.77 mmHg, respectively. o (a) Estimate the true mean difference between blood pressures for these two settings using a 99% confidence level. o (b) Does it appear that the true mean pressure is different in a dental setting than in a medical setting? Explain your reasoning.
A researach is conducted to observe whether there is significant difference between theproportions of black and white drivers stopped by the police. Simple random samplesof drivers are analyzed and the results indicate that24 black drivers out of 200 and 147white drivers out of 1400 are stopped by the police. Use a 5% significance level to testthe claim that the proportion of black direvers stopped by the police is greater than theproportion of white drivers who are stopped.
According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.38. Suppose a random sample of 105 traffic fatalities in a certain region results in 51 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the a = 0.01 level of significance? Because npo (1 - Po 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.) can be reasonably assumed to be random, What are the null and alternative hypotheses? is given to be random, cannot be reasonably assumed to be random, Ho: versus H,: (Type integers or decimals. Do not round.) is given to not be random, Find the test statistic, zo. Z0 = (Round to two decimal places as needed.) Find the P-value.…
In a random sample of males, it was found that 29 write with their left hands and 212 do not. In a random sample of females, it was found that 70 write with their left hands and 444 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below.
In a previous poll, 39% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 422 of 1145 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the x = 0.01 significance level. Because npo (1-Po) = 272.4 > 10 and the sample size is the hypothesis are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: P = versus H₁: ▼ V (Type integers or decimals. Do not round.) Find the test statistic, Zo- C less than 5% of the population size, and the sample is given to be random, the requirements for testing Zo = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Is there sufficient…
✅✅✅✅✅✅✅✅✅✅✅
Test the claim about the population mean, u, at the given level of significance using the given sample statistics. Claim: u= 40; a = 0.06; o = 3.41. Sample statistics: x = 39.9, n = 71 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H>40 О В. Но: н- 40 Hai H= 40 Ha: H 40 Ο F. Ho: μ# 40 Ha:H= 40
A random sample of857births included434boys. Use a 0.01significance level to test the claim that 51.4% of newborn babies are boys. Do the results support the belief that 51.4% of newborn babies are boys?
A Michigan study concerning preference for outdoor activities used a questionnaire with a six-point Likert-type response in which 1 designated "not important" and 6 designated "extremely important." A random sample of n1 = 41 adults were asked about fishing as an outdoor activity. The mean response was x1 = 4.9. Another random sample of n2 = 50 adults were asked about camping as an outdoor activity. For this group, the mean response was x2 = 5.7. From previous studies, it is known that ?1 = 1.6 and ?2 = 1.5. Does this indicate a difference (either way) regarding preference for camping versus preference for fishing as an outdoor activity? Use a 5% level of significance.Note: A Likert scale usually has to do with approval of or agreement with a statement in a questionnaire. For example, respondents are asked to indicate whether they "strongly agree," "agree," "disagree," or "strongly disagree" with the statement. (a) What is the level of significance? .05 State the null and alternate…