The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 594 Americans is administered the acupuncturists treatment and 71 report experiencing migraines.   What is the sample proportion? (Round to 2 decimal places) ˆpp^=______

Q: Which number best approximates risk associated with tea drinking in men?

A: Tea drinking cancer patients in men = 140Total cancer patients in male = 200Tea drinking other…

Q: A poll of 1,750 people suggested that 56% of respondents regularly watch tv shows through streaming.…

A: Given,n=1750p=0.56q=1-0.56=0.44

Q: How to calculate the "P-value"  by hand?

A: To calculate the p-value, we first need to perform a linear regression analysis on the given data,…

Q: If you are told only that you scored in the 80th percentile, do you know from that description…

A: p-th percentile means that there are p% of the values are less than that value. Here, you scored in…

Q: The mean age of a class of twenty-five students is 23.8 years. How old would a twenty-sixth student…

A: The mean age of a class of twenty-five students is 23.8 years. The formula to calculate the mean…

Q: Consider that blood pressure readings are obtained from nearly 200,000 participants in a a…

A: It is given that  Mean, μ = 85 Standard deviation, σ = 13

Q: The U.S. Department of Transportation reports that in 2018 about one of every 352 passengers on…

A: To calculate the UCL (Upper Control Limit), we need to use the formula: UCL = p + 3√((p(1-p))/n)…

Q: Which one measure of variation should you report for the variable AGE (people write their actual age…

A: The measures of variation are descriptive statistics that determine the spread of the data.

Q: From generation to generation, the mean age when smokers first start to smoke varies. However, the…

A: Given information Sample mean = 18.1 Hypothesized mean = 19 Population standard deviation = 2.1…

Q: Brad can type 1260 words in hour. What is Brad's average typing rate in words per minute? O 84 words…

A: Given that Brad can type 1260 words in 12 hours. We have to find the average typing rate in words…

Q: Calculate the coefficient of alienation.  Predict the Y

A: Given information: The data represents the values of the variables x = hours and y = quiz.

Q: What is the frequency of deaths measured from 2000 through 2004

A: We have to find the frequency of death measured from year 2000 to 2004

Q: Determine whether the variables is qualitative or quantitative number of infants born in a month

A: Let QlV denote qualitative variable. Let QnV denote quantitative variable.

Q: The median is equal to the 5th decile. True or False?

A: Solution

Q: ccording to this data, what is the "normal range" for creatinine levels? That is, in what range will…

A:

Q: Statistics jobwant workstatus age tv gpa Valid 134 133 133 132 134 Missing 1 1 Mean 23.29 3.88 2.50…

A: Given info: From the given SPSS output, the number of hours participants watch television in a…

Q: An immunologist is interested in whether the number of symptoms of the flu a person first exhibits…

A: The test is to check whether the number of symptoms of the flu a person first exhibits is related to…

Q: An ectopic pregnancy is twice as likely to develop when the pregnant woman is smoker compared to…

A: Consider EP represents the event that the women have an ectopic pregnancy.Consider S represents the…

Q: A 2014 Pew Research Center Survey asked 2,002 adults about the intersection of politics and science.…

A: The provided information are:Number of trials (n) = 2002Number of successes (X) = 1281

Q: 14. On a random day during the pandemic surge a local hospital recorded the ages of the patients in…

A:

Q: U 50 ° D G. F E 190 °

A: The figure of the circle is given by To evaluate : The value of m∠EGF

Q: Suppose a sample of 830830 Americans over 4141 is drawn. Of these people, 673673 don't smoke. Using…

A:

Q: The data set {2,5, q, 10, 13, 16} has mean i = 9. Find the value of q.

A:

Q: A study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security…

A:

Q: A paper describes an investigation in which 40 men and 40 women with online dating profiles agreed…

A: Confidence interval is used to determine the range where the true value of the parameter lies. It…

Q: A survey found that in a sample of 100 families, 37 owned cats. A survey done 5 years ago found that…

A:

Q: In July 2019, a study reported that 63% of Americans use Instagram daily. An SRS of 15 PCC students…

A:

Q: e best estimate for the percent of americans who is hiv negative.

A: Given: The fraction of hiv positive is given as ==111000.

Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A:

Q: The plot below shows the distribution of ages for 80 people called Sione. Age 0 10 20 30 40 50 Age…

A: Given the plot that shows the distribution of ages for 80 people called Sione as

Q: 28. Grade-point average. The grade-point averages of a random sample of 100 students from a…

A: Compute the value of the mean. The value of mean is obtained below as follows: From the information,…

Q: What is the relationship between a person's height and their weight in a sample of 1000 individuals?

A: A linear regression analysis was performed on the data, which showed a strong positive correlation…

Q: The results of a recent study show that the proportion of people in the western United States who…

A: There are two hypothesis 1 null hypothesis H0 in which we support that the given claim is correct 2…

Q: If you roll one six-sided die and X = the # on the die.   What is the mean value of X?

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.