According to financial records, 24% of U.S. adults have more debt on their credit cards than they have money in their savings accounts. Suppose that we take a random sample of 100 U.S. adults. Let D = the number of adults in the sample with more debt than savings. What is the probability that 30 or more adults in the sample have more debt than savings? 0.1009 0.034 0.9331 0.0669 0.8991

Q: 10. Jupiter works in a factory. He is known to make an average of 1.2 mistakes during his 8-hour…

A: From the provided information, Jupiter is known to make an average of 1.2 mistakes during his 8-hour…

Q: Suppose it is known that 10% of adolescent females in the United States have iron deficiency.…

A: Givenp=0.10sample size(n)=150Let "x" be the no.of females have iron…

Q: Let X and Y be independent random variables that are both uniformly distributed on [0, 1]. We define…

A: Given that X and Y are independent random variables, both uniformly distributed on 0, 1. (a) Z=maxX,…

Q: A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing…

A:

Q: Listed below are foot lengths (mm) and heights (mm) of males. Find the regression equation, letting…

A: Given data is Foot length Height 282.0 1784.6 277.8 1771.3 253.3 1676.1 259.3 1645.7…

Q: Assume that a set of test scores is normally distributed with a mean of 110 and a standard deviation…

A: Empirical rule of probability:- Approx. 99.7% of the data lies between ± 3 SD limit of mean μ  ±3 σ…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). In a study…

A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: Day    Frequency Sunday    40 Monday    40 Tuesday    27 Wednesday    42 Thursday    42 Friday    51…

A: From given data we have : Expected fraction  Observed Count sunday 40 monday  40 Tuesday 27…

Q: Many universities use a student's ACT score to help with admission decisions as well as placement…

A: From given data we have : ACT score 18 20 22 24 26 28 30 GPA 15 2 3 3.5 4 4.5 5.5

Q: he test statistic of z = 2.26 is obtained when testing the claim that p > 0.24. This is a…

A: a) OPTION B ) there is one critical value , the critical value is = 2.33 Rules  :- if alternative…

Q: Researchers were interested in assessing the effects of a new treatment was assessed in all…

A: Calculation of mean and variances for each  groups: For 0 Weeks: sample size (n1) = 5 sample mean…

Q: Use the assumed mean, A = 534.5 to compute the arithmetic mean of the grouped data.

A: Class  freq (f) mid (x) d=(x-A)/h f*d c*f 510-519 7 514.5 -2 -14 7 520-529 10 524.5 -1 -10 17…

Q: O O According to a certain organization, adults worked an average of 1,760 hours last year. Assume…

A:

Q: Some states now allow online gambling. As a marketing manager for a casino, you need to determine…

A: given data, here proportion value is not given so assume that p=q=0.5E= no more than 3%E≤0.03n=?

Q: The manufacturer of a certain candy states that 13% of the candies are brown, 24% yellow, 14% red,…

A: by bartleby policy i can gives only 3 subparts at a time From given data we have : 13% brown 24%…

Q: Hyperhidrosis is a stressful medical condition characterized by chronic excessive sweating. Botox…

A: Obtain the 80% confidence interval for the difference in the proportion of teenagers with…

Q: Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the…

A: The sample space of rolling a pair of dice is, Sample space…

Q: Using Table VI in Appendix C, find to 3 decimal places the value of x² for 5 degrees of freedo (a)…

A:

Q: The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e…

A:

Q: An elevator has a placard stating that the maximum capacity is 2670 lb-15 passengers. So, 15 adult…

A: Suppose the random variable x defines the weight of the adult male passenger.

Q: Claim: More than 3.9% of homes have only a landline telephone and no wireless phone. Sample data: A…

A: Given that  p = 3.9% = 0.039 ,  Claim: more than 3.9% of homes have only a landlines telephone and…

Q: One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from…

A: From the provided information, Sample size (n) = 1043 From which 96 report using illegal drugs.…

Q: A camera store sells an average of 100 cameras per month. The cost of having a camera in inventory…

A: Given data: Number of lost cameras Price per camera 1-10 10 11-40 9 41-100 7 more than…

Q: Determine the probability that the child must wait between 2 and 3 minutes on the bus on a given…

A: we have to use exponential probability distribution with mean exponential probability distribution…

Q: H0: p, μ, or σ  | =, >, , <, or ≠ ________________   Identify the test statistic ______________…

A: Given: n = 40 μ = 8.953 α = 0.10

Q: Most cases of cervical cancer are linked to a few strains of the human papilloma virus (HPV). The…

A: From the provided information, n1=100p^1=0.24n2=100p^2=0.34 Level of significance (α) = 0.10

Q: Data on U.S. work-related fatalities by cause follow. Assume that a fatality will be randomly chosen…

A: The probability of an event is calculated by using the formula,  P(Event) = (Number of outcomes…

Q: Analyse the time series of the following supermarket sales data and present the results in graphical…

A: Given Information: Consider the given data:   Week 1 Week  2 Week 3 Week 4 Monday 22 22 24 26…

Q: A marketing survey involves product recognition in New York and California. Of 679 New Yorkers…

A: given data  n1 = 679    x1 = 256p^1 = x1n1 = 256679 = 0.3370 n2 = 631    x2 = 208 p^2 = x2n2 =…

Q: Here are yesterday's high temperatures (in Fahrenheit) in 14 U.S. cities. 46, 49, 50, 55, 56, 59,…

A: Given: n = 14 Formula Used: Lower quartile Q1 = n+14thterm Median Q2 = 2(n+1)4thterm Upper quartile…

Q: Suppose it is known that 10% of adolescent females in the United States have iron deficiency.…

A: Given  p=10%, n=150  X ~Bin(n=150, p=0.10) P(X&lt;3)=?

Q: Table 1: Persons with secondary education Classes Less than 50 Less than 54 Less than 58 Less than…

A: Solution: From the given information, the table 1 is From the given information, the table 2 is

Q: Lisa entered a fast food chain to eat, and the chain can serve the food within X minutes after she…

A:

Q: There are 26 balls marked with alphabetical order A to Z. What is the of selecting vowels listed…

A:

Q: Theoretical Distribution Using the theoretical distribution, complete the following statements. Use…

A: Given that: Pinky Length: 7, 7, 7, 6.5, 6.5, 6.5, 6.5, 6, 7, 7, 7, 5, 6, 7, 6.5, 6.5, 6, 6.5, 6,…

Q: what is c? count?

A: Here C stands for combinations.   Combinations is represented as nCr  = n!/(n-r)!r!

Q: Suppose that x is normally distributed with a mean of 20 and a standard deviation of 15. What is P(x…

A: given data, normal distribution, μ=20σ=15p(X≥55.40)=?

Q: O O O A social media survey found that 71% of parents are "friends" with their children on a certain…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Q: The odds favouring the event of a person hitting a target are 3 to 5. The odds against the event of…

A:

Q: Marie is getting married tomorrow, at an outdoor ceremony in the desert. In recent years, it has…

A:

Q: The lifetime X (in hundreds of hours) of a certain type of vacuum tube has a Weibull distribution…

A:

Q: A newspaper published an article about a study in which researchers subjected laboratory gloves to…

A: there are values of sample  proportions and sample sizes For both samples given in question.\ we…

Q: A binomial distribution has p = 0.24 and n = 67. Use the normal approximation to the binomial…

A: Givenp=0.24n=67x~Binomial(n=67 , p=0.24)P(X=x)=(nx)(p)x(1-p)n-x   ; x=0,1,...,n

Q: Researchers were interested in assessing the effects of a new treatment on seasonal affective…

A: Given information: Subject  0 Week 2 Week 4 Week M participant 1 28 45 69 47.33333333 2 32 43…

Q: What is the probability that a couple with four children have atleast one girl? A) 0.0625 B) 0.9375…

A:

Q: Samples of DNA are collected, and the four DNA bases of A, G, C, and T are coded as 1, 2, 3, and 4,…

A:

Q: The letters of the word CASTIGATION is arranged in different ways randomly. What is the chance that…

A: We have given the following letters of word CASTIGATION…

Q: Example 1 Suppose we conduct a simple statistical experiment. We flip a coin one time. The coin flip…

A:

Q: S A coin-operated drink machine was designed to discharge a mean of 9 fluid ounces of coffee per…

A: From the provided information, Sample size (n) = 20 Sample mean (x̄) = 9.12 Sample standard…

Q: Suppose a card is drawn randomly from an ordinary deck of playing cards, and then put back in the…

A: