a) A medical researcher is interested in exploring the effects of a new medicine on blood pressure 500 males with high blood pressure are randomly selected and given the new drug. After two weeks, their blood pressure is measured and the average arterial pressure is calculated. b) A study is conducted to determine whether or not the dangerous activity of texting while drivin is a common practice. 1500 16- to 24-year-olds are randomly selected and asked whether or no they text while driving. Of the 1500 drivers, 12% indicate they text while driving.

Q: Compute a 90% confidence interval for the proportion of American adults who mostly drink diet soda.…

A: We have number of sample n= 2027  Number of favourable x= 485 number of people surveyed most drank…

Q: orty studens ha dass at an ney can speak. Complete the table. Foreign Language Gender Chinese…

A: Explanation of the answer is as follows

Q: How many patients were lost to contact?

A: The given table shows the year of death, year of last contact, time and number at risk, number of…

Q: Part 1 of 3 Find the range. The range is 30 Part: 1/3 Part 2 of 3 Find the variance. The variance is…

A:

Q: What percentage of those sampled had high blood pressure? What percentage of those sampled were over…

A:

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: According to past reports 48% of employees own a car. In a random sample of 250 employees, how many…

A: Total no.of employees=250 The percentage of employees own a car=0.48

Q: Men Women Total Work 15 65 Not Work 23 28 51 38 ? a) Figure out the missing totals and report them…

A:

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8. Do…

A: As per guidelines expert have to answer first question three subparts only dear student please…

Q: To determine the percentage of patients who follow the advice of their personal physician,…

A: To check :  H0 : P = 0.96   vs H1 :P≥ 0.96 P: population proportion of patients across the nation…

Q: A survey among Harvard students was conducted. It is about their starting position when they sleep…

A: Do the collected data represent a sample or population? Explain your answer.

Q: In this type of questionnaire, the researcher records the responses but is not in the same location…

A: For this kind of questionnaire, the respondents receive it via mail from the researcher, who they…

Q: What percentage of the people who worked were males?

A: men women total work 15 23 80 not work 23 28 51 total 38 93 131 What percentage of the…

Q: Out of 32 students in a class 5 said they ride their bike to school. Based on these results how many…

A: Unitary method : It is a method by  first determine the value of single unit and then determine the…

Q: To compare average birth weight between autistics and non-autistic school children from the same…

A: The objective is to find the appropriate test to compare average birth weight between autistic and…

Q: A physician claims that a person's diastolic blood pressure can be lowered if, instead of taking a…

A:

Q: A large university has 24,000 student a randomly-selected sample of 750 students were surveyed  and…

A: Given that there are 24,000 students out of which a randomly selected sample of 750 students. out of…

Q: A random sample of Print-O-Matic printing company's employee salaries (in dollars) are recorded in…

A: The observation in increasing order is 52718, 64553, 66346, 66346, 74235, 90090, 98837, 100702,…

Q: Hypertension is when an adult is classified as having high blood pressure (above 130 systolic blood…

A: Answer  X =1219 n =3532

Q: A survey of athletes revealed that for their minor aches and pains, 28 used aspirin, 52 used…

A: Let A represent asprin, I represent ibuprofen. The number of athletes who used aspirin are 28, the…

Q: (a) What kind of test should be used? A. One-Tailed B. Two-Tailed OC. It does not matter. (b) The…

A: Let  be the population mean score on the final exam. Given that,Sample size Population mean…

Q: Fourteen different​ second-year medical students at a hospital measured the blood pressure of the…

A: Arrange the data in ascending order. 120, 122, 122, 125, 126, 130, 131, 135, 140, 140, 145, 146,…

Q: How many participants (total) were females?

A: Here, the first row sum represents the total female participants.

Q: a newspaper article claims that the average age for people who recieve food stamps is 35 years. You…

A: Given that, A newspaper article claims that the average age for people who receive food stamps is 35…

Q: A survey was administered to 1000 Broward college students. 30% of the respondents indicated that…

A: Let x denotes number of students who prefer online classes over face to face classes and n denotes…

Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: For the given data on course completion time with patches for right and left eyes, since the same…

Q: a skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,…

A: It is given that the skeptical paranormal researcher claims that the proportion of Americans that…

Q: A Statistics teacher wants to know if students exposed to the use of technology in the classroom got…

A: The random variable score is normally distributed. There are two independent samples which are…

Q: A survey was conducted among the engineering students in a university. The survey is conducted to…

A:

Q: Create a 95% confidence interval for the true proportion of adult North Americans that have…

A: We have given thatn=3532x=1219Confidence level (c) = 95% =0.95

Q: what percentage of the women did not work?

A: men women total work 15 23 80 not work 23 28 51 total 38 93 131 percentage of the women…

Q: 100,000 randomly selected adults were asked whether they drink at least 48 oz of water each day and…

A:

Q: Estimate the difference between the ages of male and female respondents. (Q1=AGE, Q2=GENDER)

A: Average age of males=sum of ages of all men in the sample/number of males…

Q: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…

A: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…