people from Tanjung Malim has been given cholesterol tests, and 60 of these people had levels over the "safe" count of 200. Construct a 95% confidence interval for the population proportion of people in Tanjung Malim with cholesterol levels over 200

Q: Identify the t -scores for a 90% confidence interval if the sample size is 25?

A: Givensample size(z)=25α=1-0.90=0.10α2=0.05

Q: a 99% confidence interval

A: Confidence interval :  Confidence interval measures the degree of uncertainty. or it is the…

Q: A random sample of 423 adult women showed that 64% are currently married. Another sample of 310…

A: Solution: From the given information,

Q: A Dean of a certain business school is interested in the difference in proportions of A's given by…

A: Givenn1=800x1=240n2=800x2=160p1^=x1n1=240800=0.3p2^=x2n2=160800=0.2α=1-0.95=0.05α2=0.025zα2=1.96

Q: A sample of 60 people who were chosen for a sample had an average IQ score of 105. If the population…

A: From the given, x¯ (mean IQ score from sample)=105n (sample size)=60σ (population SD of IQ…

Q: A study of 40 bowlers showed that their average score was 180. The standard deviation of the…

A: Given n=sample size=40 x¯=sample mean=180 σ=population standard deviation=6 confidence level=0.95…

Q: Data from the National Health Interview Survey (NHIS): Group Sample Size Health Status Std. Error…

A: There are 2 categories of the people who have visited hospital recently and other doesn't visited…

Q: The Centers for Disease Control and Prevention reported a survey of randomly selected Americans age…

A: Confidence interval for Proportions : The following is the formula for confidence interval of the…

Q: A psychologist hypothesizes that the children with type-K personality score higher than the children…

A: According to the provided information, the objective of the question is whether the children with…

Q: In a random sample of 250 high school students, it was found that 85.2% (213) of them later…

A: Solution: From the given information, the 95% confidence interval is (–0.065, 0.065) and the 98%…

Q: A random sample of 5005 adults in a country includes 755 who do not use the Internet. Construct a…

A:

Q: The First National Bank of Wilson has 620 checking account customers. A recent sample of 70 of these…

A: Given that,N = 620n = 70x = 37Confidence interval(c) = 0.95The formula of the margin of error…

Q: For a random sample of 65 overweight men, the mean of number of pounds that they were overweight was…

A: Given, Sample size = 65 Sample mean = 32 Population standard deviation = 3.8   Since the population…

Q: A recent survey of 120 individuals revealed that 50 thought they were worse off financially than a…

A: Given,n=120x=50α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: A sample of 400 homeowners includes 124 that expect their home to increase in value in the next…

A: Margin of error: ME=Zα/2 * √p̂(1-p̂)/n

Q: Pew Research conducted a survey back in March of 2021 that explored the topic of discrimination…

A:

Q: The mean score of a random sample of 22 students’ applicants who took the college entrance…

A: Given :    Sample size (n) =22

Q: A researcher takes a sample of 25 people and calculates a 90% confidence interval of (4,24) for a…

A: The confidence interval is (4,24).

Q: In a study of the relationship between birth order and college success, an investigator found that…

A: Given that  Sample sizes n1=180 , n2=100 Favorable cases x1=126 , x2=54

Q: A research poll of 1501 adults showed that 1051 of respondents believe in global warming. Find a 98%…

A:

Q: The American Heart Association is about to conduct in anti smoking campaign and wants to know the…

A: Solution: Out of a sample of 1421 Americans over 35, 412 smoke.  Sample size: n = 1421 The number of…

Q: Find the critical t value to use in making an 80% confidence interval for a mean if the sample size…

A:

Q: A group of 40 bowlers showed that their average score was 192 with a standard deviation of 8. Find…

A: Given: n = 40 x¯ = 192 σ = 8 confidence level = 95%

Q: It has been claimed that 30% of students in a particular school dislike mathematics. When a survey…

A: Given,n=600x=153p^=xnp^=153600=0.51α=0.5

Q: Below is data from a survey showing the health status of those who have and have not visited…

A: Given: The provided data is: Group Sample size Health status Std. Error Hospital 7774 3.21…

Q: In survey of 7000 women, 4431 says they change their nail polish once a week. Construct a 95%…

A:

Q: In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum…

A:

Q: A psychologist hypothesizes that the children with type-A personality score higher than the children…

A: It is given that the estimated standard error is 1.2, the mean score of type-B is 22.2 and the mean…

Q: The results of a common standa population mean is 105 and the standard deviation is 30. A subject…

A: A z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: One scientist wondered if there was a difference in the average daily intake of dairy products…

A: Introduction: The 100 (1 – α) % confidence interval for the difference between population means, μ1…

Q: You want to get a 90% confidence interval for the difference between the percentage of females with…

A: Obtain the 90% confidence interval for the difference between proportions   The 90% confidence…

Q: Bilirubin is a yellowish substance in your blood that forms after red blood cells break down and it…

A: Given : The resulted 90% confidence interval for the mean Bilirubin level under the natural log…

Q: Identify the y-score for a95% confidence interval if the sample size is 50.

A: The confidence level is 0.95.

Q: a laboratory tested 36 chicken eggs and found that the mean amount of the cholesterol was 230 mg…

A: