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- A construction matenial manu fachurer compos.te beams that are prgumed to hold up to a marimum weight of 6gò_O lbs 'without A sample of 100 beams is yathered arel each beam, is subjeted, to an Jncreasing tmerght,load unhP the beam, fails, Thed sample mean might requined to caye failune in thi sample was foynd'tp be qud Tos wih a sample jtandard devratun if 8001b Test the null hypotresss Ho: H? 6000 Ò againt the alternatine hupotheses HyeG000 Signiticance lovél d= 0.05 a) Cateulate test statistic facepary to? b) Caleulate cntical ualue at edge of rejetion region tacuracy to 7decina decithat plates places) )cataulate p-value (acuray to 3decimal places d) what is the conclusAn of the hypsthers test? reject or do not vejeet the noll hypotheis?How would a person set up the hypotheses if they wanted to test the claim: the mean length of a Pyramid Lake trout is greater than 21 inches? What would be a type Il error in this case? O State the mean length of a Pyramid Lake trout is greater than or equal to 21 inches when in fact the mean length of a Pyramid Lake trout is less than 21 inches. State the mean length of a Pyramid Lake trout is less than or equal to 21 inches when in fact the mean length of a Pyramid Lake trout is greater than 21 inches. State the mean length of a Pyramid Lake trout is less than 21 inches when in fact the mean length of a Pyramid Lake trout is greater than or equal to 21 inches. O State the mean length of a Pyramid Lake trout is greater than 21 inches when in fact the mean length of a Pyramid Lake trout is less than or equal to 21 inches.Hi team, Please provide the answer for the 4 parts of the question, thanks in advance. The last senence says : (please pick the correct lines) "(Fail to reject / Reject ) H0 . There is (Sufficient / Not sufficient) evidence to conclude that the mean lead concentration for all such medicines is (Not / Equal to / Greater than / Less than ) 18 μg/g."
- before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the aircraft. The aircraft can carry 36 passengers, and a flight has fuel and baggage that allows for a total passenger load of 6 comma 012lb. The pilot sees that the plane is full and all passengers are men. The aircraft will be overloaded if the mean weight of the passengers is greater than StartFraction 6 comma 012 lb Over 36 EndFraction equals 167 lb. What is the probability that the aircraft is overloaded? Should the pilot take any action to correct for an overloadedaircraft? Assume that weights of men are normally distributed with a mean of 172.2 lb and a standard deviation of 38.2 a. The probability is approximately (Round to four decimal places as needed.)Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. He conducts this experiment 15 Sample mean for Car 2 x= 245 mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) times on each car and records the number of miles driven. Full data set Car 1 Median for Car 1 M= mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) 245 242 215 244 220 265 291 160 284 251 169 319 257 306 267 Car 2 Median for Car 2 230 242 M=O mi / 10 gal 206 214 236 256 245 255 241 264 (Type an integer or decimal rounded to one decimal place as needed.) 276 252 250 251 257A cereal company claims that the mean weight of cereal in its boxes is more than 14 ounces. Which is the correct set of hypothesis? O Ho: mu = 14 H1: mu > 14 O Ho: mu =14 H1: mu does not equal 14 O Ho: mu = 14 H1: mu 14 H1: mu =14
- A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot a then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this 2 study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the pap are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males #females Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t= df = P = Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1.03. test if the normal popu- and a treat- e treatment is age of 4 msec. vith a two- ,what is the researcher uses size influ- at all otherA credt score is uned by cedt agencies (uch as mortjage comparios and barks) to assess the arediwarthiness of individuah. Vahes range from 300 to 50, with a cedt se ever 700 connidered to te a qity cradit k According to a survey, the mean oredit score is 7075 Acredt analyst wondered whether high income individuals incomes in excse of $100.000 per year) had higher credit scores He obtained a nandom sample of 35 high-incame individaals and found the sample mean oredt score to be 725 7 with a standard deviation of 834. Conduct the appropriate test ta detemine igh income ndvia have higher ed sosat the a0 level of signiticance State the nul and ahomative typatheses (Type intagers or decimal Do not round) Identity the 1-tatistic (Round to two decimal places an needed) dentity the Pvalue Pvale Round to three decimal places an needed ) Makea conclusion regardng the hypothesis the null hypothesis. Thee suficient evidence to claim that the mean credit score of high income individuals is
- How would a person set up the hypotheses if they wanted to test the claim: the mean temperature of a October day in Oahu is different from 81 degrees? What would a type I error be? O State the mean temperature of a October day in Oahu is different from 81 degrees when in fact the mean temperature of a October day in Oahu is equal to 81 degrees. O State the mean temperature of a October day in Oahu is less than 81 degrees when in fact the mean temperature of a October day in Oahu is greater than or equal to 81 degrees. O State the mean temperature of a October day in Oahu is equal to 81 degrees when in fact the mean temperature of a October day in Oahu is different from 81 degrees. O State the mean temperature of a October day in Oahu is less than or equal to 81 degrees when in fact the mean temperature of a October day in Oahu is more than 81 degrees.A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately mile from the school. Assume that it is reasonable to regard the teen drivers in this 2 study as representative of the population of teen drivers. Amount by Which Speed Limit Was Exceeded Female Driver -0.1 0.4 1.1 0.7 1.1 1.2 0.1 0.9 0.5 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use males-females. Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t = df = P= Male Driver 1.4 1.2 0.9 2.1 0.7 1.3 3 1.3 0.6 2.1 (b) Do…n 10 of 16 > Here is a stemplot of the areas of the 46 counties in South Carolina. Note that the data have been rounded to the nearest What is the area of the largest South Carolina county? 10 square miles (mi?). O 655 square miles 3 9999 4 0116689 501115566778 6 47899 7 01245579 8 0011 13 10 8 11 390 square miles 122 square miles O 12.2 square miles O 1,220 square miles Key: 64 represents a county with an area of 635 to 644.99 9. 233 12 2 square miles.