You wish to test the following claim (Ha) at a significance level of a = 0.001. Ho : μ = 67.3 Ha : μ + 67.3 You believe the population is normally distributed and you know the standard deviation is o = 8.7. You obtain a sample mean of M = 70.2 for a sample of size n = 23. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = What is the test statistic for this sample? (Report ansv er accurate to three decimal places.) test statistic =

Q: Solve the problem. The data in the table represent the amount of raw material (in tons) put into an…

A: regression equation : y = a+bxa = -2.38b = 2.19x = raw materialy = scrap

Q: a. Complete the table (Use 4 decimal places when applicable) b. What percent of the people have…

A: Here given table for frequency distribution of No of Sibling . Cumulative frequency of particular…

Q: The data show the number of hours of television watched per day by a sample of 28 people. Use…

A: Answer:- Given data in ascending order,  0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7,…

Q: 7. Suppose you roll two die (die is the plural of dices) a. List the sample space. b. Find the…

A: Two dice are rolled

Q: The weight of oranges growing in an orchard is normally distributed with a mean weight of 8 oz. and…

A: From the given information        Mean , μ=8 Standar deviation σ=1.5 We have to find how many orange…

Q: You are given the sample mean and the population standard deviation. Use this information to…

A: Given that: n=66 Sample size x=85.44 Sample mean σ=13.81  Population standard deviation

Q: The following table shows fatality results for drivers and passengers in auto accidents in Florida…

A: Restraint Use Fatal Non Fatal Total Yes 570 554883 555453 No 433 8049 8482

Q: Special dyes have been developed that only bind to DNA. The intensity of the color is directly…

A: Special dyes have been developed that only bind to DNA. The intensity of the color is directly…

Q: The amount of time to complete a physical activity in a PE class is approximately normally normally…

A: normal distribution μ=34σ=5.4(a) P(x<31.5)=?(b)P(x>38.3)=?

Q: Subgroups of power supply units are selected once each hour from an assembly line, and the…

A: The data relates to 25 subgroups of power supply units.  The sum of the resulting ranges for 25…

Q: The positive random variable X is said to be a log-normal random variable with parameters μ and σ2…

A:

Q: 16 26 36 46 56 66 15 25 35 45 55 56 14 24 34 44 54 64 13 23 33 43 53 63 12 22 32 42 52 62 11 21 31…

A: Here given that 2 dice are rolled . So total possible outcomes = 6* 6 = 36

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: normal distributionμ = 100σ = 15P(80<x<105) = ?

Q: You are conducting a study to see if the probability of catching the flu this year is significantly…

A: claim:P≠0,37two tailed test  for singal proportion teat statitics z=-1.893p value =?

Q: The table shows the total square footage (in billions) of retailing space at shopping centers and…

A: The independent variable is Total Square Footage. The dependent variable is Sales. We have to find…

Q: Let Y represent the profit (or loss) for a certain company X years after 1975. Based on the data…

A: From the provided information, The linear model Y = 0.39X + 6.92

Q: True or False: A covariance coefficient is a symmetrical measure of association.

A: In the realm of statistics, measures of association play a crucial role in quantifying the…

Q: The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and…

A: The given mean is 15 and the standard deviation is 4. The amount of coffee that people drink per day…

Q: Approximately of housing prices are between a low price of _ and a high price of _ .

A: Housing prices in a small town are normally distributed with a mean of 153,000 and a standard…

Q: The table shows the lifetimes in hours of samples from three different types of plant species…

A: Sample 1 Sample 2 Sample 3 457 454 460 461 456 458 459 458 456   455 458   452

Q: D D Question 1 Write the answer as a decimal, accurate to 4 decimal places. If a bag contains 8…

A: The bag contains 8 green balls, 7 blue balls and 9 red balls.

Q: State the regression equation y=mx+b, with constants accurate to two decimal places. What is the…

A: here given ,  x = hours /week y = grade

Q: Find the critical value to for the confidence level c = 0.95 and sample size n = 28. Click the icon…

A: Sample size n =28

Q: did you men to use 0.227 instead of 0.184 for the LnOR?

A: The given table represents the cross-classifies votes for the years 2008 and 2012.

Q: Find the margin of error. 95% confidence interval; n = 21; 0.180 0.168 0.144 0.151 21;= 0.37; s =…

A: Mean = 0.37 S = 0.37 N= 21

Q: You are playing a computer game, where at each step you either succeed with probability or fail with…

A:

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

A: The data is defined below as follows:   From the information, given the regression equation is,…

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A: standadard normal distribution Z~N(0,1)we have to find c value such that P(-c≤Z≤c)=0.90

Q: You work at a bank and are asked to recommend the amount of cash to put in an ATM each day. You…

A: in given example part a and b are already solved so only part c is here a) Given, Number of classes…

Q: Select all of the characteristics of a standard Normal distribution. Group of answer choices…

A: Standard normal distribution: It is a type of probability distribution. It is also known as a…

Q: The gas mileages (in miles per gallon) for 29 cars are shown in the frequency distribution.…

A: Gas Mileage (in miles per gallon) Frequency 27-31 13 32-36 9 37-41 2 42-46 5

Q: Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches…

A: Mean(μ)=68 Standard deviation(σ)=1.05

Q: 6. Find the range of spread and the population standard deviation of the following data: 3, 0, 4, 1,…

A: Given raw scores data can be expressed in a frequency table as shown below: xi fi 0 1 1 4 2…

Q: Quality control staff wish to estimate what proportion p of the resistors made in their factory are…

A: Sample size =750 Sample proportion=0.016 We have to find the approximate value of a such that the…

Q: If the coefficient of correlation between x and y is close to 1, this indicates that: OA. y causes x…

A: Q-1) CORRELATION COEFFICIENT (r) = 1 this indicates what about causation?   Q-2)r = -0.60…

Q: A manufacturer of nickel-hydrogen batteries randomly selects 100 nickel plates for test cells,…

A: N = 100 X= 15   p̂ = x/n = 0.15   Hypothesis and alternative Ho:p= 0.10 H1:p>0.10

Q: The table shows the lifetimes in hours of samples from three different types of plant species…

A: Sample 1 Sample 2 Sample 3 457 454 460 461 456 458 459 458 456   455 458   452

Q: You are given the sample mean and the population standard deviation. Use this information to…

A: The random sample of size, n=48 The sample mean, x¯=$118.91 The  population standard deviation,…

Q: You are conducting a study to see if the probability of catching the flu this year is significantly…

A: Z = -1.893

Q: The point estimate for p. p, is (Round to three decimal places as needed.) The point estimate for q,…

A: Here Given  n= 1899 x= 907

Q: test statistic and p value are incorrect. please provide the correct answers!!

A: t=x−μsn=24.9743−22.64.853514=1.83

Q: A. A woman wrote to Dear Abby and claim that she gave birth 318 da husband, who was in the navy.…

A: Mean=M=268, Standard deviation=S=15 , Length=X=318

Q: In a right-tailed test, the p-value is the area under the distribution curve to the right of the O…

A: Here we have to identify the correct option regarding right tailed test for the p-value

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

A: Answer: From the given data, Standard deviation (σ) = 7.8 Margin of error (E) = 1 Confidence…

Q: A large plant with low demand would yield Php 200,000 annually because of pr inefficiencies. A small…

A: Solution : Given that : Let us take a look at each case, one by one:Case 1: Small Plant with no…

Q: Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or…

A: Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or…

Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…

A: a) The contingency table is given as follows:   Contribute Do not contribute Total…

Q: Let p be the population proportion for the following condition. Find the point estimates for p and…

A: The data is defined below as follows:   From the information, given that   Let p denotes the…

Q: A grocery store shopper wants to estimate the mean weight of the eggs in a particular carton of…

A: In this question, a grocery store shopper aims to estimate the mean weight of eggs in a specific…

Q: Exhibit 10-12 To test whether or not there is a difference between treatments A, B, and C, a sample…

A: The question is about ANOVA  Given :   To find : p value and test whether there is diff. in the…