Convert to z-scores μ = 23, o = 11 X 13 12 17

Q: Customers are used to evaluate preliminary product designs. in the past 95% of highly successful…

A: In past : 95% highly successful products received good reviews. 60% moderately successful products…

Q: IQR for data set  41, 49, 55, 82, 84, 85, 93, 103, 113, 121, 126, 127, 136, 136, 155, 166, 169,…

A: Given, The data set is 41, 49, 55, 82, 84, 85, 93, 103, 113, 121, 126, 127, 136, 136, 155, 166, 169,…

Q: the average score of 10 students is 85. what will be the mean if another student will take the test…

A: From the provided information, Average score of 10 students = 85

Q: Q1 for data set:  41, 49, 55, 82, 84, 85, 93, 103, 113, 121, 126, 127, 136, 136, 155, 166, 169,…

A: The first or lower quartile (Q1) is a value below which 25% of the observations lies and above which…

Q: The temperature for the last 5 days were: 75⁰F, 66⁰F, 80⁰F, 68⁰F and 73⁰F. What was the mean…

A:

Q: Four out of five students got As in math. What percent of students got As in math?

A: From the Percentages

Q: Calculate z0.02 -

A: Critical value is the minimum value above which can reject the null hypothesis. It is use for…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: Which region or regions showed difference in the average money spent during visit by region.

A: The Tukey HSD results show that there is a significant difference in the average money spent during…

Q: The lowest mark scored for a certain examination in a statistics class is 11. If the midrange of the…

A: Given that Minimum = 11 Midrange = 29

Q: Find the median: 25, 18, 17, 29, 40 Median=

A: Given data set: 25, 18, 17, 29, 40

Q: The mean of 14 numbers is 49. Removing one of the numbers causes the mean to decrease to 43. What…

A: given data:mean =49n=14 Removing one of the numbers causes the mean to decrease to 43new total…

Q: Did anyone have an iq of 115?

A: Histogram is given :  First we will construct frequency table from the histogram :  Steps :  Write…

Q: The ages of the members of a family who got together for a birthday celebration were 45, 33, 90, 49,…

A: The data are 45, 33, 90, 49, 91, and 14.

Q: A statistics instructor gave a final exam to his class. He recorded how many minutes it took each of…

A: N=population size=50. The time taken by the student to complete the exam are given.

Q: The data collected from the 12 female & the calculations asking in the project are shown in the…

A:

Q: Find the mode of these test scores: Test scores 100,75,80,90,80, 100,92,88,80,84,81

A: Test scores 100,75,80,90,80, 100,92,88,80,84,81

Q: Find the range of the given data: 63,83,55,78,65,98,45,32,66

A: It is given that  63, 83, 55, 78, 65, 98, 45, 32, 66

Q: The mean of 12 numbers is 48. Removing one of the numbers causes the mean to decrease to 45. What…

A: Measures of Central Tendency: A measure of central tendency represents the central value or typical…

Q: What percent of students earned an "A" grade of 90% or higher? TEST SCORES:…

A: Solution: The given data is 50, 60, 61, 63, 66, 67, 73, 82, 89 and 92. Total number of scores is 10.

Q: Take 40 numbers randomly and find its i. P75 ii. Median

A: Let 40 numbers be - 12 45 2 56 90 76 12 45 21 47 90 80 34 67 19 2…

Q: At Roxbury Community College, 7 out of every 10 students take introduction to Statistics. If there…

A: given data  N = 2500 students total in college  7 out of every 10 students take introduction to…

Q: Allie has 5 exam scores 98, 94, 84, 95 and 95 in math class. What score does she need on the final…

A: According to questionAllie has 5 exam scores 98, 94,84,95 and 95 in math classWe have to calculate…

Q: Calculate the SD for these scores:

A: Given that,Sample size To find the standard deviation of the data.

Q: In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74…

A:

Q: author De Veaux Christensen Thomas Stewart Simmons Alexander Miller Cheeseman Berg Raymond Atkins…

A: Given: n = 14 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2

Q: Last week a gumball machine dispensed 10 white gumballs and 16 other gumballs. Considering this…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is…

Q: A student completed an exam and their z score was -1.57. What percentage of students did better on…

A: We know that Z-score = (x - mu)/sigma  mu= 0 , sigma =1   X~N( 0,1)

Q: What are the null and research hypotheses? O HO: Mu-D does not = 0; H1: Mu-D = 0 O HO: Mu-D = 0; H1:…

A: We want to tell you Hypothesis

Q: The local Ice Cream shop keeps a track of how much ice cream they sell vs. the temperature on that…

A: Given data:MonthTemperature (in Ferenheit)Ice-Cream…

Q: Can you please create a pie chart and histogram from the number in the photo attached

A:

Q: Find the point estimate for the population proportion.             A Southern student wants to know…

A: It is given that the sample size (n) is 888 and the number of people spoke 2 or more languages is…

Q: A recent survey reports that 22% of students take the bus to campus. If 660 students commute to…

A:

Q: Calculate P(eating breakfast | age 14-17 )

A:

Q: Martha is in a statistics course in which each exam has a total of 100 points possible. Martha…

A: Let x be the score Martha receives on her final exam. Then, her average after the final exam can be…

Q: Calculate the SD for these scores: 6 7 8 9 10 12

A: From the provided information,Sample size (n) = 6Data: 6, 7, 8, 9, 10, 12

Q: find 10th pr for given data  45,85,98,7,56,78,56,34,25,96,85

A: