A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung ctancer patients. If this treatment is randomly given to 7ing cancer patients. (Appreximate your answer to two decimal places) How many average patients report impi ovement witn chemetherapy treatment?

Q: Find the raw score which corresponds to z=1.6?

A:

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that 110 students at a college where 69 students said that they had completed their…

Q: The scores of 40,000 county employees who took a recent civil service exam were normally distributed…

A: It is given that the scores follow normal distribution with mean 70 and standard deviation 10.…

Q: A recent poll of 800 people who work indoors found that 208 of them smoke. If the researchers wnat…

A: The sample proportion can be calculated as: p=x/n=208/800=0.26 At a 98% confidence level, the z…

Q: physicians

A: Number of success = x= 3145 n=5804

Q: Whose paint has a greater ratio of red to yellow?

A: comparing ratios red to yellow

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: The registrar's office at ACC predicts that 30% of the 6,950 spaces open in various math classes…

A:

Q: A study of 4299 adults from country A found that 2248 were obese or overweight. The point estimate…

A:

Q: 103 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that, 103 students at a college were asked whether they had completed their required…

Q: A researcher at a major hospital wishes to estimate the proportion of the adult population of the…

A: Obtain the large sample size. The large sample size is obtained below as follows: Use EXCEL…

Q: A footwear retailer sold 7 pairs of sneakers for $55 each, 5 pairs of leather shoes for $160 each, 8…

A:

Q: A federal report indicated that 17% of children under age 6 live in poverty in Nevada, an increase…

A: Given data, p=17%=0.17 E=2%=0.02 z-value at 99% confidence is Zc=2.576 n=?

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: A pollster wishes to estimate the number of left-handed scientists. How large a sample isneeded in…

A:

Q: Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years…

A:

Q: You sampled 13 people and got their pre-diet weight and post-diet weight. If α=.05α=.05, the test…

A:

Q: A man has an adopted grandson. After examining him at his 2-year checkup, the boy's pediatrician…

A: For a variable, X~N(μ,σ2), the z-score is, Z=X-μσwhereμ=population meanσ=population standard…

Q: How many success in the sample? How many failures in the sample? ? What size sample does the…

A: Answer:-  Given, n=1800

Q: 80 students at a college were asked whether they had completed their required English 101 course,…

A: Given: In a college 80 students completed their English 101 course with 48 students being yes. To…

Q: 81 students at a college were asked whether they had completed their required English 101 course,…

A: Given,     The objective is to find the best point estimate for the proportion of students at the…

Q: A manufacturing company claims that the average lifetime of their incandescent lamps is 1300 hours.…

A: We have given that data. From data i want to calculated. Mean = sum of all observations/total number…

Q: Waht sould we do with a large P-value?

A: The P-value is the probability we get the value of the test statistic, or something "more extreme"…

Q: Roy is 4 years old and in the 69th percentile for neight in his age group. Vhat does this mean? Roy…

A: The percentile is used to measure the location of a data set.

Q: The workers at drug factory took a random sample of 800 drug tablets and found that 40 of them were…

A:

Q: According to health statistics taken to observe obesity in men 6 feet or taller: A = 250 pounds is…

A: Note: Thank you for the question. Since multiple questions are posted, we are answering the first…

Q: The mean of the population is (Round to two decimal places as needed.)

A: The population is 508, 634, 545, 611 and 577.

Q: The following table shows the systolic blood pressure of 5 women and 5 men.   Women 110 120 95…

A: We state the hypothesis for testing difference in means.  H0: There is no significant difference…

Q: 138 students at a college were asked whether they had completed their required English 101 course,…

A: Consider that p is the true proportion of students at the college who have completed their required…

Q: A firm produces bolts whose length x is normally distributed with a Me = 78.3 mm and a SD = 1.4mm.…

A: Given information- Population mean, µ = 78.3 mm SD = 1.4 mm Let X be the length of the bolt produces…

Q: A student at Tolland High School wondered if boys or girls at her school traveled a greater distance…

A: Given: Sample size for girls = 50 Sample size for boys = 50 The concern is to check the average…

Q: A survey of 400O non-fatal accidents showed that 189 involved the use of a cell phone. Determine a…

A:

Q: 136 students at a college were asked whether they had completed their required English 101 course,…

A: The total no.of college students is, n = 136 The no.of students who have completed their required…

Q: At the beginning of 2018, a survey showed that a country with a total land area of 500,500 square…

A: Given that,  at the beginning of 2018, a survey showed that a country with a total land area of…

Q: Nutritionists claim that the mean mass of vitamin C per tablet is higher than 291 milligrams.…

A: It is given that the Nutritionists claim that the mean mass of vitamin C per tablet is higher than…

Q: In a survey of 1,500 high school s of sleep. What is the approximate get an average of 8 hours of…

A: Here it is given that - Number of sample (n) = 1500 Sample proportion (p) = 79100 = 0.79 So, q = 1-p…

Q: A software engineering firm began stocking flavored sparkling water in addition to soda in the break…

A:

Q: An online test of English spelling looked at how well people spelled difficult words. The bar graph…

A: Here  The given bar graph shows how many people per 100 spelled each word correctly.

Q: 82 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: 133 students at a college were asked whether they had completed their required English 101 course,…

A: Given, The objective is to find the best point estimate for the proportion of students at the…

Q: What percent of our campus is female? If no preliminary study is made to estimate, how large a…

A:

Q: 85 students at a college were asked whether they had completed their required English 101 course,…

A: Best point estimate:The best point estimate of population proportion is the sample proportion.

Q: A study in 2014 indicated that 19% of American households have a landline telephone that they do not…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: Using a random sample of 4300 TV households, a media research company found that 62.2% watched the…

A: n = 7100

Q: 140 students at a college were asked whether they had completed their required English 101 course,…

A: Here given that, Sample size is n= 140 And we need to find proportion for 83 students.  So x= 83

Q: 114 students at a college were asked whether they had completed their required English 101 course,…

A: From the provided information, the total students of collage (n) = 114The number of students who…

Q: 101 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: A recent survey found that in a particular city of all poor children born in 1980, 11,500 enrolled…

A: Scaling of data:The scaling of data, or in other words, normalization of data is a mathematical…

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A:

Q: of students at the college who have completed their required English

A: Here, total number of students in the college(n) = 94 Number of students who had completed their…