A cordless telephone that is regularly priced at $50.00 is discounted $10.00. What is the discount rate on the cordless telephone? The discount rate on the cordless telephone is If necessary, round to the nearest tenth of a percent. %.

Q: esearchers at a reputable university and a reputable health organization claim that approximately…

A: Given Information: Proportion p=0.74 Number of trials n=80

Q: For the statement below, write the claim as a mathematical statement. State the null and alternative…

A: Given,Claim: The mean life of the battery for a certain modle of laptop is less than 5 hours.

Q: e values of a and B. e probability that on any given day the daily power consumption will exceed 14…

A: Given Mean=12 Variance=48

Q: tudent preferred morning classes given he or she is a freshman. Round to the nearest thousandth.  Be…

A: From the above table, total number of student = 18 +13 + 14 + 12 + 16 + 18 + 9 + 18 + 6 + 5 + 3 + 12…

Q: Suppose events A, B, and C are independent and P(A) = 1/2    P(B) = 1/3     P(C) = 1/8 Find the…

A: It is given that P(A)=1/2, P(B)=1/3 and P(C)=1/8.

Q: study of a particular disease case is carried out to treat the atient appropriately. If X₁,…

A: Solution

Q: The Z-score is. (Round to two decimal places as needed.)

A: It is given that  The shaded area of the graph is 0.4129.

Q: > A box contains 7 white balls, 9 black balls, and 2 red balls. a) How many red balls must be added…

A:

Q: A nutritionist claims that the mean tuna consumption by a person is 3.2 pounds per year. A sample of…

A: Given: A nutritionist claims that the mean tuna consumption by a person is 3.2 pounds per year. A…

Q: 5 4 ald -0.01 3 2 -0.02 Table 2C: Jarque-Bera Test 0.00 0.01 0.02 0.03 Series: Residuals Sample…

A: Solution: The distribution of residuals follows normal

Q: Determine whether the claim stated below represents the null hypothesis or the alternative…

A: Null hypothesis is denoted by H0.

Q: Q1: If the event A is independent with itself, then P(A) is

A: Given: An event A is independent to itself. Suppose the probability of the event A is P(A).

Q: travel from her home to her morning class is uniformly distributed between 22 and 30 minutes. If she…

A: It is given that the time required by a certain student to travel from her home to her morning class…

Q: Jayda takes 4 hours to deliver 508 newspapers on her paper route. What is the rate per hour at which…

A: Rate is the measure that divide each observations happen per hour. Rate explains the number of times…

Q: b. The probability is 0.18 that the air pollution level in a given region will be in the unsafe…

A: HERE given ,  the probability is 0.18 that the air pollution level in a given region will be in the…

Q: Construct the confidence interval for the population mean μ. c=0.95, x=8.3, o=0.2, and n = 44 A 95%…

A: Given data isc=0.95Mean(x)=8.3standard deviation(σ)=0.2sample size(n)=44

Q: What is the range of all integers greater than 40 and less than 99 that are multiples of 3

A: To find : The range of all integers greater than 40 and less than 99 that are multiples of 3

Q: A letter is known to have come either from LONDON or CLIFTON. On the postmark only the two…

A:

Q: In a refrigerator there are 17 bottles of diet soda, 8 bottles of regular soda, and 6 bottles of…

A: Solution Given That, In a refrigerator there are 17 bottles of diet soda, 8 bottles of regular soda,…

Q: The population mean and standard deviation are given below. Find the required probability and…

A: From the provided information, Mean (µ) = 228 Standard deviation (σ) = 5.9 X~N (228, 5.9)

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z= -1.70. Decide whether…

A: Given,Test statistic(Z)=-1.70The test is left-tailed testand α=0.10

Q: Question 1 The bulk density of pima clay loam follows normal distribution with mean of 1.75 g/cm³…

A: Given Mean(μ)=1.75 g/cm3standard deviation(σ)=0.25  g/cm3

Q: Assume that a procedure yields a binomial distribution with n=3 trials and a probability of success…

A: The answer is attached below,

Q: A bag of balls contains 7 black balls and 5 white balls. We randomly draw 5 balls, so what is the…

A:

Q: The average hourly sale of a certain ride in an amusement park is P148.75/hr with a standard…

A: Given information- Population Mean µ = P148.75/hr Standard deviation (σ) = P75.76 Let X be the…

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: Given data is1420,700,724,622,1227,727,748,1445,980,833,540,943sample size(n)=12

Q: State whether the standardized test statistic z indicates that you should reject the null…

A: Given graph is

Q: probability that the interval between succeeding messages is more than 1 hour

A: HERE given ,   As a data analyst, I received requests at a rate of 1 every 25 minutes,…

Q: All books are 25% off of the original price at the bookstore. If a book normally the sale price of…

A: Given data, All books are 25% off of the original price If a book normally costs $20 What is the…

Q: Find the probability that a person flipping a coin gets (a) the fourth tail on the seventh flip, and…

A: Given,  Task is flipping a coin and we have to find the probability of getting fourth tail on the…

Q: 37% of working mothers do not have enough money to cover their health insurance deductibles. You…

A: Binomial probability pmf has used.

Q: Nine percent of the population has blood type B. If we choose 18 people at random, what is the…

A: Given,n=18p=0.09q=1-0.09=0.91Let X= no.of people have blood type B in a sample of 18…

Q: The tree diagram represents an experiment consisting of two trials. 5/ 6 D Are A and Cindependent…

A: Given a tree diagram, using the tree diagram we have to find are A and C are independent events.

Q: Find the margin of error for the given values of c, s, and n. c=0.99, s=2.1, n=17 Click the icon to…

A: Given,c=0.99 , s=2.1 , n=17degrees of freedom(df)=n-1df=17-1=16α=1-0.99=0.01α2=0.005t0.005(16)=2.921…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.98,…

A: Givenc=0.98standard deviation(σ)=6.5Margin of error(E)=2

Q: upon payment is receive

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: Q3 :A: An urn contain three red balls ,two blue ball and five white balls, A ball is selected and…

A: Given: n(Red) = 3 n(Blue) = 2 n(white) = 5 Total balls = 3+2+5 = 10 A ball is selected and its color…

Q: Forty-five percent of consumers prefer to purchase electronics online. You randomly select 8…

A: Givenp=0.45n=8Let "x" be the no. that prefer to purchase electronics…

Q: A result is significant at the 0.01 level. Explain why it must also be significant at the 0.05…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: dence inter should reject Ho. Explain your reasoning. 0.54 right represent three samplings. Decide…

A: Solution Given That The three confidence intervals to the right represent three samplings. Decide…

Q: B: Calculate Expected value and standard deviation ? X p(x) 0 0.2 1 0.4 2 0.1 3 0.3

A:

Q: Q4: The following data represent weights for 25 items construct a frequency distribution table: 15,…

A: First Arrange data in ascending order are.  1, 1, 2, 2, 3, 5, 5, 5, 7, 8, 8, 8, 9, 9, 10, 10, 10,…

Q: Show that the following function is a valid probability mass function of the random variable X. p(x)…

A: Each probability mass function p(x) satisfies following two conditions: p(x)>=0, for all…

Q: Question 4 946 red firs 217 A buyer must decide whether or not to accept a shipment of 40 parts. The…

A: Solution-: Given: N=40,M=5, n=6 Our aim to find, (a) P(accept shipment no defective parts are…

Q: 5. Let (S2, A, Pr) be an abstract probability space, and let A, B be events. Prove that Pr(B|A) +…

A:

Q: Find the unknown number in the proportion x 40 4 10 Question Help: Video Submit Question

A: Given unknown number in the proportion X=?

Q: For each level of confidence c below, determine the corresponding normal confidence interval. Assume…

A: Solution Given information

Q: ility mass function of X and Y, p(x, y) is g p(2,1)= p(3,1)= } 9 p(2,2)=0 p(3,2)=+ p(1,1)= p(1,2)=

A: The joint probability mass function of X and Y has given.

Q: nas, III past, its goblets. Such goblets are designated as "seconds". Assume defective goblets are…

A: It is given that p = 0.10.

Q: You are dealt two cards from a standard deck of 52 cards. What is the probability that the two cards…

A: