For the discrete series given as, X variable values - 32 with frequemcy 2, 37 with frequency 5, 46 with frequency 3 and 48 with frequency 9, mean is Select one: O а. 58 O b. 34 O.C. 43 O d. 19

Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…

A: Given information: 121, 139, 121, 125, 118, 145, 141, 91, 127, 136, 144, 154, 131, 139, 125, 108,…

Q: A portion of the cumulative normal table (z table) is reproduced below. What is P(-2.94 ≤ z ≤ -2.70)

A: GivenP(-2.94≤z≤-2.70)

Q: values of d and Sd. In general, what does μd represent? Temperature (°F) at 8 AM 98.5 98.7 97.7…

A:

Q: Suppose that a certain college class contains 59 students. Of these, 27 are sophomores, 34 are…

A: Given that  N = 59n(S) = Number of Sophomores majors = 27n(M) = Number of Mathematics majors = 34n(…

Q: Question 14 Which of the following statements is NOT true for a normal distribution? The areas on…

A: Know that about normal distribution.    X~N( μ , ?^2 )   Z-score =( x - μ )/?   NOTE:- According to…

Q: Find the value of the test statistic. (Round your answer to two or more decimal places.) B. Find…

A: For the given table, We have to calculate Test statistic and p value Test statistic = chi square…

Q: Review Chapters 7 & 8 6) Divide the data into two groups: those with High School GPA under 3.5 and…

A: Given information: High school College GPA 3.85 3.68 3.22 3.1 2.99 2.72 3.89 3.61 4.1 4…

Q: A random sample of size 625 was selected from a large population with population mean μ = 15 and…

A:

Q: Explain how you will use Paired Sample t-test in any research with a suitable example.

A: Paired sample t-test The paired sample t-test, sometimes called the dependent sample t-test, maybe a…

Q: Hypotheses for a chi-square goodness-of-fit test are given, along with the sample data and the…

A:

Q: Suppose a card is drawn at random from a standard deck. The card is then shuffled back into the…

A: It is known that Number of hearts = 13 Number of black cards = 26 Number of Jack = 4 Total cards in…

Q: CHOOSE THE LETTER OF THE CORRECT ANSWER (PLEASE ANSWER EVERYTHING AND NO NEED FOR AN EXPLANATION)…

A: Note: As per guidelines we will only answer the first three subparts, please repost other subparts…

Q: The probability that someone does not believe that it is morally wrong to not report all income on…

A: Given P(people believe it is morally wrong) =79%=0.79

Q: i. Illustrate using a comparative line graph (three lines on one graph) the following for 2014 to…

A: Note that I used Excel software for my calculations. Line chart to show trend over time.

Q: CHOOSE THE LETTER OF THE CORRECT ANSWER AND NO NEED FOR AN EXPLANATION.   1. Of the below…

A: Given that  We have to choose correct option:    1..Of the below non-parametric tests, which relies…

Q: Based on a survey, assume that 29% of consumers are comfortable having drones deliver their…

A:

Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…

A:

Q: Linda must travel to a foreign country where a deadly strain of flu has ravaged the population.…

A: We have to find the probability that Linda willsuccumb to the flu and die while he is away.Let V be…

Q: 92 124 95 121 78 88 108 126 114 105 129 109 103 85 107 104 74 73 60 68 69 98 Lavender Odor 106 89…

A: Solution: Let X be the Lavender Odor, Y be the Lemon Odor and Z be the No Odor. The given data is

Q: According to a recent article about individuals who have credit cards, the mean number of cards per…

A: Given: The mean number of cards per person with credit cards is 4. Sample size n=60 Significance…

Q: they had Banks: A poll institutions. A total of 159 adults said that they had a great deal of…

A:

Q: Part 1 of 4 The area of the shaded region is Part 2 of 4 0.96 1.56 X 5

A:

Q: College bound: A national college researcher reported that 68% of students who graduated from high…

A: Givenp=0.68n=32Let "x" be the no. of students enroll in collegex~Binomial(n=32 ,…

Q: Fifteen items or less: The number of customers in line at a supermarket express checkout counter is…

A: X p(x) 0 0.05 1 0.25 2 0.30 3 0.20 4 0.10 5 0.10

Q: s the following distribution sh

A: Skewness: A frequency distribution of the set of values that is not symmetrical is called…

Q: What is the null hypothesis H0 and the alternative hypothesis H1?

A: Here p=76%              =76/100            =0.76 So null and alternative hypothesis is  Null…

Q: Assume that a sample is used to estimate a population mean μμ. Find the margin of error M.E. that…

A:

Q: In a moderately skewed distribution, the arithmetic mean is  10 units and the mode is  7 units, find…

A: Formula for Median If mean and mode are given  Median = ( Mode + 2 * Mean ) / 3

Q: 4. The strength of paper used by a certain company is approximately normally distributed with mean…

A: Given that: Population mean, μ=30 Population standard deviation, σ=3 Margin of error, E=2…

Q: imagine you’re hired by a beef company called “American Beef Makers” as a Data Analyst and you’re…

A: Please note that as per our guidelines if multiple sub-parts are there in a question we can answer…

Q: Within the class, my classmates and I are given a fixed daily allowance by their parents. Curious, I…

A: Given : To find : Popl. mean and popl. std. deviation using excel

Q: (a) The 9 'members of a fraternity have the following test scores: 118, 119, 121, 124, 125, 127,…

A: Descriptive statistic is used to summarize the data set. It can be summarized using two measures…

Q: Express the confidence interval (0.029,0.117) in the form o mofp-E<p<p+E <p<(Type integers or…

A: Given that  Confidence interval  (0.029 , 0.117)

Q: Preliminary data analyses indicate that you can consider the assumptions for using nonpooled…

A:

Q: Use the TI-84 Plus calculator to find the z-score for which the area to its left is 0.85. Round the…

A:

Q: Suppose your firm is buying five new computers. The manufacturer offers a warranty to replace any…

A: From the provided information, There is a 25% chance that any given computer breaks within three…

Q: Consider the following frequency table representing the distribution of the length of a morning walk…

A: Since we know that mid point of a  class is defined as Class Mid-point = (upper class + Lower…

Q: Divide the data into two groups: those with under 85 on Homework and those with at least 85 on…

A:

Q: In a drawer, there are 12 pairs of socks, 8 of which are white. If you randomly select two pairs of…

A: GivenTotal no. of pair of socks=12No.of white pair of socks=8

Q: The average number of accidents at controlled intersections per year is 5.2. Is this average a…

A: Given, Sample Size, n = 48 Mean, μ = 5.2 Sample Mean, x¯ = 4.2 Standard Deviation, s = 1.98 Level of…

Q: From a large number of actuarial exam scores, a random sample of  275  scores is selected, and it…

A: Given that  Sample size n =275 Favorable cases x =187 Sample proportion p^=x/n  =187/275 =0.68

Q: A random right triangle can be constructed in the following manner. Let X be a random angle whose…

A:

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: Sample mean (x̅) = 71.9 Sample size (n) = 364Standard deviations (s) = 20.1Significance level (α) =…

Q: Assume the geometric distribution applies. Use the given probability of success p to find the…

A:

Q: Weight loss: In a study to determine whether counseling could help people lose weight, a sample of…

A: a) The claim is that the mean weight loss is greater than 13 pounds.

Q: A group of people were asked if they had run a red light in the last year. 288 responded "yes", and…

A: Given,no.of people responded " yes"=288no.of people responded "no" =368Total no.of people=656

Q: For the purposes of constructing modified boxplots, outliers are defined as data values that are…

A:

Q: Managers at an automobile manufacturing plant would like to estimate the mean completion time of an…

A: Given that  Margin of error =E =1.7 Population standard deviation =10.1

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given Mean=45 Standard deviations=7

Q: All students at Redmond and Power take a certain exam. The mean scores for boys, girls, and for boys…

A: The mean of x with size n is defined as follows: x=∑i=1nxin The combined mean of the two groups with…