A medical director needs to know the proportion of patients who have a single bed in their room. A selection of two hundred patients is made and of those 59% have a single bed. Find a 95% confidence interval for the proportion of patients with a single bed in their room

If n = 440 and X = 352, construct a 90% confidence interval for the population proportion, p.Give your answers to three decimals

Construct the 99% confidence interval for the difference when ,-476.88, x-318.32, , -42.11, -26.80, -19, and #₂ -22. Use the TI-84 Plus calculator and round the answers to two decimal places. A 99% confidence interval for the difference in the population means is

A survey showed 980 of 1500 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults believing in global warming.

You're considering going to graduate school, and you would like to know how many people would recommend it. You talk to 30 people, and 7 recommend it. Construct a 96% confidence interval for p, the proportion of people that recommend you go to graduate school. What is the lower bound of this interval?

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 10% and highest 10%, indicating levels that are too low or too high, respectively. Sketch the region containing the lowest 10% and highest 10%. Choose the correct graph below. OA. -Za Za Q The bone density scores are ☐ OB. -Za Za (Use a comma to separate answers as needed. Round to two decimal places as needed.) ○ C. Q Za -Za D. Q a G Za -Za

Find the margin of error for the​ 99% confidence interval used to estimate the population proportion. In a clinical test with 1200 subjects, 35​% showed improvement from the treatment.

A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean exam score on the previous three tests. She then asked them to rate how likely they were to cheat on an exam if the opportunity presented itself with a very limited chance for consequences. The students rated their desire to cheat on a scale ranging from 1-100, with lower numbers indicating less desire to cheat.   Before opening the data, what would you hypothesize about this research question?   Open the data set. Before running any statistical analyses, glance through the data. Do you think that your hypothesis will be supported?   Conduct descriptive analyses and report them here.   Conduct a one-way ANOVA. Report your statistical findings (including any applicable tables in APA format) here.   What would you conclude from this analysis? What would be your next steps, if this…

Some students think that a 90% confidence interval contains 90% of the data. Use the list of data on the first page and count how many of the data values lie within the confidence interval. What percent is this? Is this percent close to 90%? Explain why this percent should or should not be close to 90%.

In a random sample of 250 high school students, it was found that 85.2% (213) of them later graduated. Find the 95% and 98% confidence interval for the true proportion of all high school students who graduate. Compare the two proportions.