Based on this information, should she buy the policy

Q: In a Leichtman Research Group survey of 800 TV​ households, 74.8​% of them had at least one​…

A: given data, n=800p^=0.748claim:p=0.79α=0.01

Q: In a test of a​ sex-selection technique, results consisted of 299 female babies and 9 male babies.…

A: Given Female=299 Male=9

Q: professional drag racing over the past two decades are listed below. Find the median speed.    181.1…

A: Given that  The data are…

Q: In a recent​ year, the total scores for a certain standardized test were normally​ distributed, with…

A: given data, normal distribution,μ=500σ=10.4we have to find out the given probability,

Q: omeone took 6 samples, they found an average of 8.5 #/1 with a standard deviation of 1.6 #/1 a)…

A: Given that  Sample size n =6 Sample mean=8.5 Standard deviation =1.6

Q: account now in order to have $2000 in the account in 15 years? Assume the account earns 6.9%…

A: Given that,  Amount after 15 years is A= 2000 rate is R= 6.9%  Time = 15 years (daily)

Q: Construct the 99% confidence interval for the difference μ1 - μ2 when x1 = 476.88, = x2 = 318.32, s1…

A: Given that x¯1=476.88,x¯2=318.32,s1=42.11,s2=26.80,n1=19,n2=22.

Q: Ise the frequency distribution to complete parts (a) rough (e). Determine the total number of…

A: class frequency 7-11 9 12-16 4 17-21 6 22-26 1 27-31 2 32-36 9

Q: Determine what type of observational study is described. Explain. Researchers wanted to determine…

A: in this case information is collected in a single point in time. Cross sectional study designs are…

Q: Overtime Hours Worked A random sample of 14 registered nurses in a large hospital showed that they…

A: Givensample size(n)=14Mean(x)=42.4standard deviation(s)=2.1confidence level=95%

Q: Media periodically discuss the issue of heights of winning presidential candidates and heights of…

A: The total number of observations is n = 14.

Q: Classify the variable as qualitative or quantitative. the temperatures of cups of coffee served at a…

A: Quantitative : measures of values or counts and are expressed as numbers Qualitative : measures of…

Q: If n=29, ¯x(x-bar)=41, and s=5, find the margin of error at a 99% confidence level Give your answer…

A: given data sample size (n) = 29sample mean ( x¯ ) = 41sample standard deviation (s) = 599% ci for…

Q: Use the pizza cost and the subway fare in the table below to find the regression​ equation, letting…

A: Part 1: The independent variable is pizza cost (x) and the dependent variable is subway fare (y).

Q: 2. There are two boxes. Box A has 3 white chips and 1 red chip, Box B has 2 white chips and 1 red ch…

A: In this case, color  Box A has 3 color W chips and 1 color R chip.

Q: In a population where 25% of voters prefer Candidate A, an organization conducts a poll of 1616…

A: P(prefer candidate A) = 0.25 n = 16 voters P(0 of 16 will prefer candidate A) = ?

Q: Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs?…

A: We have to determine correlation coefficients r.  r=SSXY/√SSXX.SSYY

Q: Use z scores to compare the given values.   The tallest living man at one time had a height of 245…

A:

Q: 8 Results from a civil servant exam are shown in the table to the right. Is there sufficient…

A: Here we’ve to test if there is discrimination or not. So white candidates and minority candidates do…

Q: Where is the highest point on the graph of the normal density curve located? Ο Α. μ +σ OB. an…

A: Objective of this question is that, which option is the correct choice.

Q: Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good…

A: The z test are used to compare the proportion of sample and population. The sample proportion is…

Q: Find the indicated area under the standard normal curve.   Between z=−2.23 and z=2.23   Click here…

A: Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: Explain what "80% confidence" means in a 80% confidence interval. What does "80% confidence" mean in…

A: we have to explain meaning of 80% ci.

Q: =600 and ˆpp^ (p-hat) = 0.7, construct a 98% Confidence Interval. In order to use technology, you…

A: given data,n=600p^=0.70CI=0.98α=1-0.98=0.02we have to find out the confidence interval for the given…

Q: You run a regression analysis on a bivariate set of data (n = 101). You obtain the regression…

A: Given y = 4.436x - 29.838

Q: Suppose losses X are lognormally distributed with mean and variance o², written X Lognormal(1, 2).…

A: Given that X~Lognormalμ,σ2. We have to find ESα(X)=EX|X>VaRα. We know that if X is a continuous…

Q: medical researcher wishes to determine if there is a relationship between the number of…

A: Objective of this question is that, which option is the correct choice.

Q: QUESTION 8 Nabisco claims that Chip Ahoy Cookies have an x ̅=28.67 chocolate chips per cookie with a…

A: given data n = 15x¯ = 28.67s = 2.67standard error = ?

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: The regression equation is y=a+bx.

Q: just need x2 & p-value

A: Given that  Number of categories = n = 5

Q: The type of household for the U.S. population and for a random sample of 411 households from a…

A: The number of households is 411.

Q: Suppose that Z given Y = y has a normal dlistibution with mean zero and variance y^2 and that Y has…

A:

Q: A national survey of 1400 adult citizens of a nation found that 15% dreaded Valentine's Day. The…

A: Given  E=margin of error=1.4% =0.014  p^= sample proportion=15% =0.15  Level of significance=0.15

Q: Using your favorite statistics software package, you generate a scatter plot with a regression…

A: given data  regression equationy = -76.52x + 10.33r = -0.29

Q: Assume that all​ grade-point averages are to be standardized on a scale between 0 and 6. How many​…

A: The question is about sample size estimation Given : sample mean is within 0.009 of the popl. mean…

Q: xpress the confidence interval 66%±3%66%±3% in interval form.

A: given data :  ci : 66%±3%

Q: A nutritionist claims that the mean tuna consumption by a person is 3.4 pounds per year. A sample of…

A:

Q: Which measure of central tendency is not resistant to extreme values in a numeric data set?

A: Mean measure of central tendency is not resistant to extreme values in a numeric data set due to the…

Q: Is the average time to complete an obstacle course shorter when a patch is placed over the right eye…

A: Suppose μd is the population mean value of the differences of time to complete a course when a patch…

Q: Nabisco claims that Chip Ahoy Cookies have an x ̅=28.67 per cookie with a SD=2.67. Assuming this…

A: 1. Given that x¯=28.67 and SD=2.67.

Q: California has the smallest interquartile range.

A:

Q: Recovering from Surgery: A new post surgical treatment was compared with a standard treatment. Seven…

A: The given data shows the recovery times from a surgery in days.

Q: The drug Finasteride is marketed as Propecia to help protect against male pattern baldness, and it…

A: From the provided information, the data is given in a 2X2 contingency table as follows:   Cancer…

Q: Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs?…

A: We have given the following table x 2.5 4 3.40 4.4 2.4 y 5.2 10.3 10.8…

Q: The following two-way contingency table gives the breakdown of the population of adults in a town…

A:

Q: The accompanying data table lists leading digits of 317 inter-arrival Internet traffic times for a…

A: From given  χ2=20.9222 Critical χ2=15.5073

Q: ssume the population standard deviation is 4.3 ounces. Based on this, construct a or the true…

A: Given n=42 Mean=77 Standard deviation=4.3

Q: The mean age of professors at a university is 45.8 years. If a hypothesis test is performed, how…

A: claim : μ = 45.8 we perform hypothesis test and  decision : fail to reject the null hypothesis. we…

Q: hat 75% of all voters prefer Candidate A. If 9 people are chosen at random for a poll, what is the…

A: given data, 75% of all  voters prefer Candidate A.p( voters prefer Candidate…

Q: Sampling

A: