The table below shows the distribution of births across the days of the week in a random sample of 148 births from local records in a large city: Days Sun Mon Tue Wed Thu Births 20 18 19 23 17 Are births evenly distributed across the days of the week? Use 10% level of significance. Fri 25 Sat 26

Q: Conduct a test at the a = 0.10 level of significance by determining (a) the null and alternative…

A: From the given information, P=0.029 and α=0.10   Decision Rule: If p-value ≤ α, then reject the…

Q: Make 1 real-life problem with a solution in any of the following topics;

A: Hypothesis testing for one sample proportion is large sample hypothesis test for binomial…

Q: find the test value used to test the claim that the proportion of jellyfish stings at jones beach is…

A: Given, Sample size = 696 Sample proportion = 0.30   The null and alternative hypothesis is:

Q: A bored student would like to determine if they have a fair coin. They toss a coin 100 times and…

A: Consider that pi’s are the proportion of the heads and tails, respectively. For all i = 1, 2.

Q: I would like to estimate the percentage of voters who are registered as Independent in Maryland…

A: The confidence level is 80% Therefore, α = 0.20, α/2=0.10 and 1- α/2=0.90. The margin of error is…

Q: DURING an experimetn in school , Geirge conducts an experiment  in which he measures an item/object…

A: During the experiment Geirge uses a string and ruler. He is likely to commit measurement error…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: A random sample of 150 people was taken from a very large population. About 100 of the people in the…

A: According to the given information,Sample size, n = 150Number of successes in the sample, x =…

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: Given E=0.04 Alpha=0.05

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given Information: Confidence level = 80%  Error (e) = 0.05 Proportion (p) = 0.5 (assumed)  The z…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Assume p=0.5 and q=0.5, as the population proportion is unknown Here, margin of error e = 0.01 The…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given that, Critical value: Using the z-table, the critical value at 99% confidence level is,

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: As there is no estimates available, the sample proportion to be 0.50, i.e., 50%.The margin of error…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given  e=Margin of error=8%, level of significance ɑ=0.10

Q: In a survey, 33% of the respondents stated that they talk to their pets on the telephone. A…

A: The given data is as follows:Sample size, Number of owners who spoke to the pet on phone,…

Q: If the candidate only wants a 3% margin of error at a 95% confidence level,

A: A political candidate has asked you to conduct a poll to determine what percentage of people support…

Q: We want to show that the percentage of Americans with a red car is less than 15%. What type of test…

A: Given that: The alternative hypothesis is: H1:p<0.15

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: They want to test if the true proportion of working markers from the new machine is greater than…

A: Answer: Given that the Company bought a new machine that makes makers. In a random sample of 250…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: A political candidate has asked you to conduct a poll to determine what percentage of people support…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: n = 664Explanation:To calculate the sample size needed for a poll with a specific margin of error…

Q: Identify the type I error and the type II error that correspond to the given hypothesis.   The…

A: Answer:-  Population proportion, P=65%=0.65 Our hypothesis is, H0: P=0.65  vs  H1: P>0.65   Type…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: When nothing is known about the population proportion, Consider population proportion (p) = 0.50.…

Q: A researcher has a limited amount of time and money, so they want to choose the research design that…

A: Correct option is (A) The related samples t-test  It is also known as Dependent t test and paired t…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Here,…

Q: We are trying to evaluate if the true proportion of people who are male is less than 50%. What type…

A: We are trying to evaluate if the true proportion of people who are male is less than 50%.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: How do I find P-value using z score?

A: P-value from Z-score