2591 adults in a recent​ year, 1275 say they have made a New​ Year's resolution.

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: California has the smallest interquartile range.

A:

Q: Professors collected data consisting of eye color and gender of statistics students. Among 950 male​…

A: Given that, For males:  X1= 372 and sample size n1= 950  p1^ = X1/n1 = 372/950 =0.3916 For females:…

Q: c) If X is the recovery time, compute P (4 < x < 5.5) and interpret what it means in the context of…

A: It is given that  Mean = 6.4 Standard deviation = 2.3

Q: HO: p= .30 H1: p.30 Hypothesis Test Test Statistic: z-^p-p v pq/n-307-.30 √(30).30 -.327 140…

A: Given that: Number of red gummy bears, x= 43 Sample size, n=140 Confidence level = 0.95

Q: If all other quantities remain the​ same, how does the indicated change affect the width of a…

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

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: 13. Companies are interested in the demographics of those who listen and call in to the radio…

A: From the provided information, 20% of listeners phoning in to a morning talk show are male that is p…

Q: An article suggests that substrate concentration (mg/cm³) of influent to a reactor is normally…

A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

Q: New representatives for the John Ford Metal and Wheel Company attend a brief training program before…

A: Correlation is used to measure the association between the two or more variable. It can be…

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

A: Given E=0.009 Confidence level=98% Standard deviation=1.5

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A:

Q: Company A, Company B, and Company C sold a number of stocks each month in 2019. Each company…

A: The box plots for the stock sales for three companies were given.

Q: Here is data with y as the response variable. X y 68.4 10.2 74.7 -9.4 75.5 112.4 81.9 -12.2 32.6…

A: Form given data we have :

Q: A variable is normally distributed with mean 20 and standard deviation 7. Use your graphing…

A: The given mean is 20 and standard deviation is 7.

Q: Use a ruler to help you estimate the slope for a line that best approximates the data in the scatter…

A:

Q: Results of Regressions of Average Hourly Earnings on Gender and Education Binary Variables and Other…

A: As per the guidelines. Since you have posted a question with multiple sub-parts, we will solve the…

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: Let y represent the profit (or loss) for a certain company x years after 1960. Based on the data…

A: Given ŷ =- 3.03x+44.05

Q: O between 40.2 and 57.5

A:

Q: What is the percentage of measurements that are below the 88th percentile? OA. 22% OB. 88% OC. 12%…

A: we have to find % of measurements are below 88th percentile = ?

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

A:

Q: A special raffle ticket lists 5 different numbers. The numbers range from 1 to 9. To choose a…

A: balls are numbered 1 to 9 : {1,2,3,4,5,6,7,8,9}draw 5 balls at random. if same 5 numbers selected in…

Q: d) Person is male or person has no opinion

A: Given that.  Total = 53 + 47 = 100 Male = 53 No opinion = 13 + 7 = 20 Male and no opinion = 13

Q: QUESTION:  Given the following frequency table, calculate the mean of X.  (Please round your answer…

A: We have given the following frequency distribution table X f(X) 11 2 13 1 14 2 15 5

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: Candidate A is running for president of the student government at a large university. The…

A: given data  n = 100P(favor candidate A )  = 0.7P(not favor candidate A ) = 1 - 0. 7 = 0.3x = no. of…

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A: given data n = 40claim : p&gt;0.19Z = 1.917p value = ?

Q: what was the null hypothesis?

A: Here we’ve to test the variability. We want to check if group 1 have more variability than group 2…

Q: Which of the following represents the probability of correctly rejecting the null hypothesis —…

A: We have to determine which statement is correct for given situation.

Q: You run a factory that produces widgets (no, you'll never escape the widgets). Widget diameters are…

A: According to the given information in this question We need to find the following probability

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

A: Given data is x y 1 83 2 103 3 117 4 124 5 151 6 166

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: Wind Mountain is an archaeological study area located in southwestern New Mexico. Potsherds are…

A: Given: The data on three different sites is provided: Site I Site II Site III 62 26 30 22 61…

Q: Find the equation of the least squares liney=a+bx. Round a and b to three decimal places. O-83.789+…

A: Given that    X Y X \cdot YX⋅Y X^2X2   5.25 39 204.75 27.5625   5.50 54 297 30.25   5.75 31…

Q: A study about the blood glucose levels (in mg/dL) of diabetic patients is performed. You wish to…

A: Group Statistics       Blood glucose level Sleep Quality of Patients N Mean Std. dev SE   Poor…

Q: Que Need specs are like good hypotheses. They need to testable O general O interesting O in a very…

A: Need specs are like good hypothesis.They need to be testable.

Q: A somewhat outdated study indicates that the mean number of hours worked per week by software…

A: Solution : We have given that, the mean number of hours worked per week by software developers, u,…

Q: 8. A random sample of 90 eighth grade students' scores on a national mathematics assessment test has…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: random angle ? ∈ [0, 360) (in degrees) and a random radius ? ∈ [0, 1] (in meters) both independent…

A:

Q: Cost of Pizzas A pizza shop owner wishes to find the 99% confidence interval of the true mean cost…

A: given data 99% ci for μ. E = 0.19σ = 0.42n = ?

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

A: The linear equation is: y^=0.89x+3.8

Q: another retail merchant who sells face masks spent a total $55 for advertising its product. using…

A: Regression model is,  Y= 279.2893401+3.220812183*X Where Y is sales of merchant and X is advertising…

Q: A group of researchers are working to determine the historic sea levels of the body of water. They…

A: Given information:   Age(x) centimeters(y) x^2 y^2 xy   1 85.96 1 7389.122 85.96   2 171.96 4…

Q: 8. (Same as #4) At a particular gas station, gasoline is stocked in a bulk tank each week. Let…

A:

Q: According to the historical data, the life expectancy in Belgium is less than the life expectancy in…

A:

Q: Twenty members of a health club who jog were asked how many miles they jog per week. The responses…

A: Given that  The data are  13,17,2,8,12,25,22,31,19,4,9,29,41,24,18,15,23,34,19,15

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: It is given that r=0.592,r2=0.35.

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A:

Q: Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing…

A: The random variable y be the annual return for the Vanguard Balanced Index.