If X is distributed t with 10 degrees of freedom, then the 95th percentile of X is closest to: O a. 1.72 O b. -1.81 O c. 1.81 O d. 1.93 O e. -1.93
Q: The table below gives information about a random sample of trees, and whether or not they have been…
A: We have to find E value.... For given data...
Q: A sociologist recently conducted a survey of citizens over 60 years of age who have net worthies too…
A: 64,83,66,92,78,73,62,92,73,85,72,61,81,73,88,81,84,86,84,83
Q: The z statistic is different from the z score in that...?
A: Given that:An incomplete statement about z statistic and z score is given as "The z statistic is…
Q: D FIND THE INDICATED IQscORE. THE GRAPH DEPICTS IQ SCORES WIH MEAN OF 1O0 AND STANDIRD DEVIATION 15…
A: We have to find value of x...
Q: Births are approximately uniformly distributed between the 52 weeks of the year. They can be said to…
A:
Q: What is the z-score range for the following percentile: 29th O Between -0.29 and -0.30 O Between…
A: Given percentile = T = 29 Z=x-μσ
Q: If you wanted to do a Test for Independence on the data, find the E value you use for the following…
A: The expected frequency for each category can be obtained as E = (Row total × Column total)/Grand…
Q: (d) Compute the marginal pmf of X. X 0 1 Px(x) Compute the marginal pmf of Y. y Py(Y) Using Px(x),…
A:
Q: Find the percentile rank of students obtaining the scores:
A:
Q: Capsaicin content in red habanero chilli (Capsicum chinense Jacq.) is affected by the drying…
A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…
Q: Come up with four groups of people (age, ethnicity, cultural, personality, etc.) whose Facebook…
A: A distribution skewed to the right is said to be positively skewed. This kind of distribution has a…
Q: B. Edna ranked 75th in her senior class of 400 students. Rey is in the same senior class and has a…
A: We have to find whose rank is better in two problems B and C.
Q: The table below shows the scores of a group of students on a 10-point qu Test Score Frequency 3 4 6.…
A: Solution: Test score (x) Frequency (f) fx Cumulative frequency (< type) 3 6 18 6 4 1 4…
Q: The Sky Train from the terminal to the rental car and long-term parking center is supposed to arrive…
A: GivenThe Sky Train from the terminal to the rental car and long-term parking center is supposed to…
Q: What is the standard error of the estimate? A) 1.595 B) 1.666 C) 0.970 D) 1.920 If there was no…
A: Close Friends Self-Esteem Mean 8.90 5.20 SD 3.75 2.15 a = 2.904 and b = 0.258
Q: The term "Condition of the Independent Variable" matches which of the following ANOVA terms? Factor…
A: The option is B.
Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…
A:
Q: Suppose that a population has μ = 50, σ = 25, and is normally distributed. Determine the percentile…
A:
Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…
A: From the provided information, The mean (µ) and standard deviation (σ) for Best Actor are 42.0 and…
Q: normal. 362, 395, 367, 389, 403, 374, 378, 404, 362, 399, 382, 383, 399, 406, 386, 390 What can be…
A: Answer Given,362,395,367,389,403,374,378,404,362,399,382,383,399,406,386,390The sample size[n] =16We…
Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…
A: As per our guidelines, we are allowed to answer first three-sub parts only. thanks Given :
Q: The average fruit fly will lay 420 eggs into rotting fruit. A biologist wants to see if the average…
A: From the given data: x¯=∑xn=620015=413.33s=16.6548 n=15 a) For this study, we should use…
Q: he data below show the sport preference and age of participants from a random sample of members of a…
A: Given, H0 : Sport preference is independent of age Ha : Sport preference is dependent on age…
Q: Calculate skewness from the following distribution. 6 x : 1 3 4 5 7 f:. 12 27 29 19 8 4 1
A:
Q: The manufacturer of a certain candy states that 15% of the candies are brown, 15% yellow, 25% red,…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners…
A:
Q: In a public health study, a histogram was plotted showing the number of cigarettes smoked per day by…
A: A histogram showing cigarettes smoked by subjects is given. The first quartile or 25 percentile is…
Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…
A: Obtain the 7th percentile of the distribution. The 7thpercentile of the distribution is obtained…
Q: 23. Identify the shape of each of the distributions below: Histogram of a 2 4 8 a Histogram of b 0 1…
A: A negatively skewed (also known as left-skewed) distribution is a type of distribution in which more…
Q: The following stem-and-leaf plot represents the times in minutes required for 2626 co-workers to…
A: we have given data is,StemLeaves21 4 4 5 6 7 7 932 5 6 41 1 3 3 3 3 4 750 1 2 3 4 5 9Let first enter…
Q: A reşearcher is trying to find the average pulse rate of a group of patients with diabetes, and the…
A: Solution: 1) Parametric test : The parametric test is based on the normal distribution. The…
Q: A sociologist recently conducted a survey of citizens over 60 years of age who have net worthies too…
A: 64,83,66,90,66,92,78,73,62,92,73,85,72,61,81,73,88,81,84,86,84,83
Q: answer multiple choice questions
A:
Q: CA D 2) A biologist is studying the distribution of flower colors in a particular species. According…
A:
Q: The data represents the body mass index (BMI) values for 20 females. Construct a frequency…
A:
Q: The 25th and 75th percentile points
A: Given Data is :
Q: University students who drink alcohol, usually consume about 6 drinks per week. Given that about 60%…
A: University students who drink alcohol, usually consume about 6 drinks per week. Given that about 60%…
Q: Lengths 3.2 The lenghts (in inches) of a sample of 22 butterfly winsgpans is given. 1.8 3.2 Draw the…
A: Box-plot: In statistics, a box plot is also known as whisker plot is a type of chart often used in…
Q: Tiffany is a manager who needs to fire the worst performing 3% of employees. At her organization,…
A: Given that, Employee performance is a normally distributed variable. Tiffany is a manager who needs…
Step by step
Solved in 2 steps
- Cal Poly Pomona found that 15% of its students withdraw without completing Calculus I course. Assume that 30 students registered for the course. Let X be the number of students who withdraw. What distribution does X follow?The national distribution of fatal work injuries in a country is shown in the table to the right under National %. You believe that the distribution of fatal work injuries is different in the western part of the country and randomly select 6231 fatal work injuries occuring in that region. At a = 0.05 can you conclude that the distribution of fatal work injuries in the west is different from the national distribution? Complete parts a through d below. Equipment Cause National % 44% Western Frequency Transportation 2895 18% 1160 Assaults Falls Harmful fumes 14% 803 13% 754 9% 532 Fires 2% 87 O B. The distribution of fatal work injuries in the west is the same as the expected distribution. O C. The distribution of fatal work injuries in the west is 44% transportation, 18% equipment, 14% assaults, 13% falls, 9% harmful fumes, and 2% fires. Which hypothesis is the claim? O Ho V H. b. Determine the critical value, Yo. and the rejection region. Y = 11.071 (Round to three decimal places as…Given are 4 observations for the monthly expenditure (in 1000s) for a group of families. Monthly expenditure2.12.32.42.8 Monthly expenditure 2.1 2.3 2.4 2.8 The value of the 35th percentile is equal to Select one: a. 2.1 2.1 b. 1.4 1.4 c. 2 2 d. 2.3
- The average fruit fly will lay 377 eggs into rotting fruit. A biologist wants to see if the average will be greater for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 367, 374, 364, 388, 407, 369, 375, 362, 403, 383, 381, 391, 371 What can be concluded at the the αα = 0.10 level of significance level of significance? The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)The data shown below are monthly rental costs of 15 randomly selected two-bedroom apartments in a certain city: J A. Find the mean of the data. Mean = $ 1040, 971, 774, 928, 978, 908, 867, 978, 933, 901, 1026, 1069, 955, 876, 1054 B. Interpret your answer. O The average number of apartments rented in this city. O 50% of two-bedroom apartments in this city cost less than the mean, and 50% cost more. O Average monthly rental cost of an apartment in this city. O Average monthly rental cost of a two-bedroom apartment in this city. C. Find the standard deviation of this data. Standard devation = $ D. Interpret your answer. $ 4 JAE JO JA V I % 5 t bo b 6 וום y ♣ Round to 1 decimal place. h & 7 n u j * 8 Round to 2 decimal places. O m 9 k O < O | alt р A [ ctri ? |The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best Actor Best Supporting Actor µ= 42.0 µ= 51.0 o = 8.7 o = 12 In a particular year, the Best Actor was 40 years old and the Best Supporting Actor was 77 years old. Determine the z-scores for each. Best Actor: z %3D Best Supporting Actor: z = (Round to two decimal places as needed.) Interpret the z-scores. The Best Actor was the mean, which unusual. The Best Supporting Actor was the mean, which unusual.
- Find the highest possible value for x in the set 8.2, 7.7, 6, 4.8, 8.2, 5.8, 9.2, 7.3, 6.2, 8.1, 5.5, and x such that the mean of these scores is 7.The government is interested to estimate the proportion of families gathering in the weekends, in a city. The city is divided into three blocks. A stratified random sample of 60 households was selected proportionately from each block considering the blocks as strata. The summary data of the survey are presented in the following table. Stratu Ni m (i) |X; Mean S; Pi 1 120 18 35.0 4.0 0.5 О.2 0.9 130 15 20.0 5.0 180 27 30.0 6.0 25 i) Estimate the proportion of family gathering in the weekend, and obtain a 95% confidence interval of your estimate. Interpret the results. ii) Find the appropriate sample size and its allocation for estimating the total family gathering, with a bound of 50 points on the error of estimation. Assume that the stratum standard deviations are o1=8, 02=12 and , o3=4. LO NO Oold 23The accompanying data are x = advertising share and y = market share for a particular brand of soft drink during 10 randomly selected years. x 0.104 0.072 0.072 0.077 0.086 0.047 0.060 0.050 0.070 0.052 y 0.137 0.127 0.120 0.086 0.079 0.076 0.065 0.059 0.051 0.039 b)Calculate the equation of the estimated regression line. (Round your answers to four decimal places.) d)Calculate a point estimate of ?e. (Round your answer to five decimal places.)
- Each of the boxplots shown summarizes 24 student scores on a recent test in two different classes. The boxplots are drawn using a common numerical scale. Which of the following must be true? 1. The lower 25% of Class B are much more spread out than the lower 25% of Class A 2. More people scored below the lower quartile for Class A than Class B 3. The distribution for Class B is skewed left and has a noticeable outlier as well, while the distribution for Class A is somewhat skewed right 4.Class A had more people between the median and the lower quartile than Class B. 3.The distribution for Class A is somewhat symmetric, while the distribution for Class B is skewed right with a noticeable outlier as wellThe table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony. The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best actor Best supporting actor u= 41.0 u=55.0 Q= 7.7 Q= 12 In a particular year, the Best Actor was 44 years old and the best supporting actor was 42 years old. Determine the z-scores for each. best actor z=____________ best supporting actor z=___________ Round to two decimal places as needed.find the highest possible value for x in the set 8.2 , 7.7 , 6 , 4.8, 8.2 , 5.8 ,9.2, 7.3, 6.2, 8.1 , 5.5 and x such that the mean of this score is 7.