The average number of words in a romance novel is 64,147 and the standard deviation is 17,387. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N() b. Find the proportion of all novels that are between 55,453 and 69,363 words. c. The 85th percentile for novels is ... words. (Round to the nearest word) d. The middle 70% of romance novels have from... words to... words. (Round to the nearest word)

Q: 3. In a normal distribution whose mean is 2 and S.D. 3, find a value of the variate such that the…

A:

Q: The daily dissolved oxygen concentration in a downstream from an industrial plant has been recorded…

A: The daily dissolved oxygen concentration in a downstream from an industrial plant has been recorded…

Q: Sixty students were given a history exam. Their scores are shown below, sorted from smallest to…

A: Five number summary is:  Min, Q1, Median, Q3 , Max Here minimum observation is 16 so  Min= 16…

Q: Differentiate between nominal data and ordinal data. Give at least two examples of nominal and…

A: Here we have to  Differentiate between nominal data and ordinal data.

Q: The histogram and cumulative percentage polygon below visualize the property taxes per capita for 36…

A: The histogram and cumulative percentage polygon below visualize the property taxes per capita for 36…

Q: In a chi-square test, if you are able to reject the null hypothesis at alpha = .05, you can…

A: Null hypothesis for chi-square test statistic is:  H0: there is no association between the…

Q: af error of u is o decimal places as needed.) lence interval using the standard normal distribution…

A: Given n=8 Standard deviations=8.8

Q: Consider the hypothesis test Ho: M₁ = μ₂ against H₁: M₁ M₂. Suppose that sample sizes are n₁ = 10…

A:

Q: What is the problem all about? How are you going to interpret the given data? How are you going to…

A: We are going to tell you about the interpretation of data of height & calculation about it. The…

Q: 2. The lengths (in feet) of a random sample of suspension bridges in the United States, Europe, and…

A:

Q: Why n-2? Where did 2 come from?

A: Please find the explanation below. Thank you

Q: The local coffee shop keeps track of how much coffee they sell versus the temperature on that day,…

A: We have given the following data.

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1218 males surveyed,…

A:

Q: = Pq N- n N-I N: populati

A:

Q: ack in the bag. Ms. Wade thoroughly mixed the fish in the Of these 40 fish, 5 were marked. The…

A: *Answer:  *(a) Considering the sample proportion of marked fish is approximated to obtain the total…

Q: Referring to Golf Club example in slides #26-29, using an overall level of significance of 0.01, the…

A: Given information:- α=0.01 Club 1 Club 2 Club 3 254 234 200 263 218 222 241 235 197 237…

Q: How many ways can a committee of 4 people be selected from a group of 10 people?

A: Find number of ways to select 4 people from a group of 10 people

Q: 3.Which of the following is equivalent to First Quartile?*   Median 2nd decile Lower Quartile…

A: According to the given information in this question We need to identify the correct option from the…

Q: A forecaster used the regression equation Qt= a + bt+c₁D₁ + C2D2 + c3D3 and quarterly sales data for…

A: From the given information, a=30, b=1.5, c1=10, c2=25, c3=40

Q: EXERCISE 30 A couple is planning on having three children. Assuming that each child is equally…

A: A couple is planning on having three children. Each child is equally likely to be of either sex and…

Q: forecaster used the regression equation Qt = a + bt + c1D1 + c2D2 + c3D3 and quarterly sales data…

A:

Q: Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The fill volume…

A:

Q: The average number of field mice per acre in a 5-acre wheat field is estimated to be 10. Find the…

A: a) The problem follows Poisson Distribution with mean 12       P(X<7) = 0.0458

Q: Find a 95% confidence interval on the difference in mean coding times. Is there any indication that…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Use linear regression to find the equation for the linear function that best fits this data. Round…

A: Solution: x y x2 y2 x⋅y 1 86 1 7396 86 2 106 4 11236 212 3 120 9 14400 360 4 132 16 17424…

Q: The piston diameter of a certain hand pump is 0.4 inch The manager determines that the diameters are…

A: From the given information we conduct Hypothesis test.

Q: The heights (inches) of the students on a campus are assumed to have a normal distribution with a…

A:

Q: (a) The probability is. (Round to four decimal places as needed.) (b) The probability is. (Round to…

A: It is given that  Mean, μ = 89 Standard deviation, σ = 0.6 Sample size, n = 45 z-score, z = (X -…

Q: 10. If there are 12 numbers in a set of data, the 2nd quartile is the?*   2nd number 5th number…

A:

Q: Suppose that a very large number of random samples of size 25 are selected from a population with…

A: Given, Sample size, n =25 Mean, μ = 300 Standard deviation, σ = 20

Q: Let x be a random variable that represents the percentage of successful free throws a professional…

A: The name of the sign ∑ is Sigma(capital). It is also known as summation sign. It represents the sum…

Q: Road Safety statistics of a certain town over the last three years, the ten intersections having…

A: *Answer:

Q: Private nonprofit four-year colleges charge, on average, $26,996 per year in tuition and fees. The…

A:

Q: It is known that the weights of male Persian cats are normally distributed with mean 6.1 kg and…

A: part a. Hi! Thank you for the question, As per the honor code, we are allowed to answer first three…

Q: Two companies manufacture a rubber material intended for use in an automotive  application. The part…

A:

Q: Two types of plastic are suitable for use by an electronics component manufacturer. The breaking…

A: Given that  It is known that σ1 = σ2 = 1.0 psi. From a random sample of size of n1 = 10 and n2 = 12,…

Q: The following linear demand specification is estimated for Conlan Enterprises, a price-setting firm:…

A:

Q: If X is normally distributed random variable with a standard deviation of 35. Find the mean given…

A:

Q: n ordinary (fair) coin is tossed 3 times. Outcomes are thus triples of "heads" (h) and "tails" (1)…

A: Solution: Let N be the random variable counting the number of heads in each outcome From the given…

Q: Number of Fish Tub 32-34 29-31 26-28 23-25 20-22 Frequency (f) 6 5 10 7 2

A: Formula : mean :

Q: course

A:

Q: Show that for Poisson distribution with parameter m, all the cumulants are m.

A:

Q: Is psychiatric history dependent on where the mother lives (country or city)? The test statistics…

A: It can be conclude after performing the test of independency.  We assume that residence is grouping…

Q: 1. Twelve electric bulbs are drawn independently every hour from a production line at a factory. The…

A: Given problem Given that   Twelve electric bulbs are drawn independently every hour from a…

Q: A professor claims that students who have faster typing speed (in words per minute) tend to have…

A: Here's, correlation coefficient is 0.3234 which is too weak relationship between them. Hence option…

Q: 3. A clinical psychologist is keen about finding out if the length of therapy will significantly…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A probability mass function for a particular random variable y having nonnegative integer values is…

A:

Q: 2. Which of the following is also equal to median score?*   75th percentile 5th decile 3rd…

A:

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: Given For a) X=5.7 For b) X=3.3

Q: A random sample of 861 births in a state included 429 boys. Construct a 95% confidence interval…

A: