Assuming you have Rejected the Null Hypothesis using a 90% Confidence Interval what would happen if you made one change in your analysis – switching to a 95% Confidence Interval? The Null Hypothesis would still be rejected The Null Hypothesis would not be rejected The Null Hypothesis might be rejected or it might not Changing the Confidence Interval would not change the conclusion to Reject the Null

Q: Give the endpoints of the 90% confidence interval for the true population proportion of fruit flies…

A: Sample size is given by n = 500 And number of flies with gene, X = 200 At 90% confidence level, the…

Q: A student reads that a re- cent poll finds that a 95% confidence interval for the mean ideal weight…

A:

Q: If your supervisor decides that they want to be 95% confident in the results of a survey were the…

A: Solving the second part only.

Q: t is thought that the male voters prefer a candidate more than the female voters. A sample of 400…

A: (1) State the hypotheses.   Obtain the value of the test statistic. The value of test statistic is…

Q: A November 2018 CBS News Poll found that 35% of its sample planned to use online retailers for most…

A: Given that, A November 2018 CBS News Poll found that 35% of its sample planned to use online…

Q: Suppose we want to conduct a hypothesis test at the 5% significance level of whether room rates of…

A: Given that  Population mean = 350 95% confidence interval =( 310 , 345 )

Q: If the 90% confidence interval does not include the value stated in the null hypothesis at the 10%…

A:

Q: Based on a study of 380 dorm residents, the 95% confidence interval for average hours slept per…

A: The 95% confidence interval for average hours slept per weeknight is from 7.2 to 7.8.

Q: Your stats teacher wants to estimate the proportion of people at New Jersey beaches who are wearing…

A:

Q: what z value would make you reject the null hypothesis  u=52 at a 90% confidence level when the…

A: The alternative hypothesis is µ<52.

Q: not use ai please

A: Step 1:Load ggplot and the required dataset (which is contained in ggplot2)library(ggplot2)…

Q: 95% confidence interval from (0.08, 0.14) when computing the difference between California and…

A: Some people are interested in legalizing weed. A research wanted to compare responses between…

Q: (True or False)

A: The answer is False.

Q: The researcher rejected the null hypothesis at the 95% confidence level where F(2, 14) = 53.54, p =…

A: F-table  / Technology can be used to find P-value. I am using Excel function,

Q: The admissions director for a university found that (107.8, 116.2) is a 95% confidence interval for…

A: The admission director for a university found that (107.8, 116.2) is a 95% confidence interval for…

Q: This my third time posting the same question. Because no one answer it straight to me. I already…

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Q: Suppose you compute a confidence interval based on a sample of size 58. You then collect a sample of…

A: From the information, the first sample size is 58 and the second sample size is 63.

Q: What can we do to make a confidence interval narrower without changing the confidence level?

A: Confidence interval:  A range of values such that the population parameter can expected to contain…

Q: The percentage of people with an unfavorable view of the Tea Party in a recent New York Times/CBS…

A: Obtain the 95% confidence interval for the percentage of all American adults who have a negative…

Q: A recent survey among 460 randomly selected street vendors in Pretoria shows that 368 of them felt…

A: Givenx=368n=460p^=xn=368460=0.80Confidence interval(c)=95%α=1-0.95=0.05α2=0.025zc=zα2=z0.025=1.96…

Q: A study has been conducted to compare male and female test performance on a standardised science…

A: When the sample size is increased the margin of error decreases, these affects the confidence…

Q: Elísabet conducted an experiment where she examined the number of tourists who visited one place in…

A: Hypothesis Ho: mu1-mu2=0 Vs H1:mu1-mu2 ≠ 0  When p value< alpha=0.05, then we reject the null…

Q: Your medical professor asks you to collect data from a lab samples to find out the percentage of…

A:

Q: We wish to give a 99% confidence interval for the fraction of fruit flies which possess a certain…

A: According to the given information in this question We need to calculate 99% confidence interval of…

Q: Regardless of your previous answers, let's say you make a 99% confidence interval and the interval…

A: Given information- We have given a 99% confidence interval- Lower limit = 0.14 Upper limit = 0.26…

Q: An agricultural researcher plants 50 plots with a new variety of potatoes. A 90% confidence interval…

A:

Q: not use ai please don't

A: To construct a 99% confidence interval for the difference between two proportions, P1 − P2, we can…

Q: Two different simple random samples are drawn from two different populations. The first sample…

A: Given: Sample size of first is n1=20. Number of people have same attribute is x1=9. Estimated sample…

Q: If 25 falls inside the confidence interval, then you would fail to reject the null hypothesis and…

A: If 25 falls inside the confidence interval, then you would fail to reject the null hypothesis and…

Q: Your medical professor asks you to collect data from lab samples to find out the percentage of these…

A:

Q: If n=260 and p' (p-prime) = 0.84, construct a 99% confidence interval. Give your answers to three…

A: Given: n =260 p' =0.84 we need 99% confidence interval

Q: A cable company reported the national average monthly bill for all users last year was $250. A SRS…

A: Given data is appropriate for t-test because it is a small sample test (n) less than or equal to 30.

Q: Suppose that a friend of yours says that they were reading about confidence intervals and ask you…

A: Here's, x-bar and mu, first of all x-bar is the sample mean and mu is the population mean. We use…

Q: genetic experiment with peas resulted in one sample of offspring that consisted of 421 green peas…

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Q: A drug company has developed a new over the counter medicine intended to provide relief from…

A: Given that 90 of the 120 patients experienced pain relief.Let X=90 and n= 120Consider, the sample…

Q: You calculate a 95% confidence interval for the true length in inches of "foot- long" sandwiches to…

A: Suppose μ is the true population average length of “foot-long” sandwiches.

Q: If the confidence interval for the difference between two treatment means does not contain , then we…

A: If the confidence interval for the difference between the treatment means does not contain the value…

Q: A sample of 503 school teachers, who are married, showed that 210 of them hold a second job to…

A: Given Data n1 = 503 x1 = 210 n2 = 383 x2 = 141

Q: "Trydint" bubble-gum company claims that 3 out of 10 people prefer their gum to "Eklypse". Test…

A: Given, H0:p=0.3H1:p≠0.3   point estimate is 0.25.