4.72b: What is the requested score?

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

A:

Q: Determine the P-value for a one-sided test with z = 1.89

A: here given , hypothesis test is one tail  test statistic  =  1.89  use excel command for p -value

Q: o=58. From sample sizes of 36 adults find the proportion of sample means having values of at least…

A: here , sample size  = 36 population  mean = 162 population standard deviation = 58

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: c. How many of 45 randomly selected employees have a personal messaging frequency less than 170? d.…

A:

Q: c. What is the power of the test in part a? d. How many animals should be included in the study to…

A: c) What is the power of the test ? The power of the test is the probability of rejecting the null…

Q: c. How could you proceed to find out how many of the eligible people would actually join the new…

A:

Q: Identify the t-statistic. to = (Round to two decimál places as needed.)

A: Given:

Q: What is the result of 2.58×0.12, including correct significant figures?

A: Given, 0.58*0.12

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 grocery store has determined that in crates of tomatoes, 95% carry no rotten tomatoes, 2% carry…

A: Given: The probability that crates carry no rotten tomatoes is 0.95. The probability that crates…

Q: what is the z score that corresponds to P18

A: The standard normal variable Z follows normal distribution with mean 0 and standard deviation 1.

Q: 14) A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A:

Q: Find and interpret the z-score for Montana, which had 1.9% foreign-born residents.

A: a) The percentage of foreign-born residents is 1.9%. That is, score=1.9 From the output, mean=8.73…

Q: 1) In a four-year psychedelic-mushroom experiment, 93 of the 300 subjects reported experiencing…

A:

Q: M= 90 SD= 7.8 What raw score is needed to be in the top 8%?

A: *Mean μ=90SD σ=7.8Top 8%⇒P(X>x)=0.08⇒P(X≤x)=092Corresponding  z-score is obtained as

Q: A worker at a frozen yogurt store has 2 3/4 cups of frozen yogurt to give to customers as samples.…

A: We have to find no. Of samples , using all the frozen yogurt.

Q: 2. Compute the mean for the difference scores.

A: First we have to calculate the difference in scores for each participants.

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: 5. Compute the point estimate for the difference in the proportion of orange colored pieces between…

A: We want to find the point estimate for the difference in the proportion of orange colored pieces…

Q: Z-score in

A: Population mean and standard deviation:

Q: vas conducted to investigate a relationship at injuries are independent of helmet color. Color of…

A: control cases total black 468 197 665 white 362 117 479 yellow 27 8 35 red 166 69 235…

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

A: Given that, Critical value: Using the z-table, the critical value at 99% confidence level is

Q: Of 470 randomly selected circuits produced in a photolithography process, 15 are defectives. How…

A: Given: Margin of error (E) = 0.02 Sample proportion p^=xn=15470=0.03191 Confidence level =95% = 0.95

Q: 50, the mean number of partners reported was 1.049 (sd=1.89). Is it reasonable that the mean number…

A: here sample size  = 3636         sample mean  = 1.049         sample standard deviation = 1.89 here…

Q: a. How many welders were studied? b. What is the class interval? c. About how many welders earn less…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 23. Calculate the SS for your D scores:

A: We have given that the researcher would like to evaluate the effectiveness of a pain-relief patch…

Q: The theater owner wants to sample 250 customers out of the 3500 in attendance. This will be a 1 in k…

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: a What percent of the recruits are between ages 23 and 29 What is the probablity that a recruit is…

A: here from given information mean = 23  standard deviation = 3 here use standard normal distribution…

Q: 5. For the following scores, Y 4 compatational 1 confuse the 1 4 nor

A: Given the following scores, X Y 4 0 1 5 1 0 4 5   (a) To sketch a scatter plot and…

Q: Carter conducted an experiment to see how many people who passed by him at the park were wearing…

A: Given,          Carter conducted an experiment to see how many people who passed by him           at…

Q: 47 Find out Ginni's mean difference from the following items :- 22, 24, 26, 28, 30.

A:

Q: What is the correct decision for a test of the difference in two proportions if the test statistic…

A: It is given that the test statistic is 1.99.

Q: How many scores 2. between 96 and 106?

A: HERE GIVEN , mean µ = 86 and σ= 10. HERE USE NORMAL DISTRIBUTION BECAUSE POPULATION IS LARGE ENOUGH…

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

A:

Q: Determine the test score of John in Statistics if he has a z-score of 1.89. (SD = 4, mean = 82)

A:

Q: 2.) Suppose you scored 75, 64, and 79 on your first 3 math tests. a.) What is your current average?

A: We are given scores of 3 math tests which are 75, 64, and 79 We need find the current average of…

Q: 13. The araler takt Is $7950IO on a stene015Ound SyrtemipuK chase of 7645. Find the sales tar rate..

A: To find the sales tax rate

Q: Why must the sum of all fs in a sample equal N?

A: Every datum in a sample is assigned to a category/class depending on its value. For a given dataset,…

Q: The efficiency expert at a computer company tested 40 engineers to estimate the average time it…

A: Given,sample size(n)=40sample mean(x¯)=12.73standard deviation(s)=2.06degrees of…

Q: 2 Considering the 5800 enrollees in the College of Education, a researcher would like to make a…

A:

Q: In a survey, 18 people were asked how mue roughly bell-shaped with a mean of $30.2 would spend on…

A:

Q: mean: 67.755 standard deviation: 26.871

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: c) How many women, on average, would you expect to find in a sample of that size? women (Type a…

A: (c )   Obtain the number of women of sample found in that size is expected on average.   The number…

Q: According to the Humane Society, 33% of households in the United States own at least one cat. You…

A: From the given information p Value is 0.092. We want to interpret it.

Q: The mean heignt Of male College Studen ts in a large eity is 68 Inches and the Starder d deviotion…

A: Given information- Population mean, µ = 68 inches Population standard deviation, σ = 15.5 inches…

Q: Determine the test score of John in Statistics if he has a z-score of 1.9. (SD = 4, mean = 85)

A: Given that in statistics, John has z-score of 1.9 where mean score is 85 and SD is 4. Here, to find…

Q: 2.3 14.8 Percentile of 0.9 = (Round to the nearest whole number as needed.) :公

A: Given Total number of values = 50

Q: Samples of four different chocolate chip cookies show the following numbers of calories for the…

A: