A beverage company has two bottling plants in different parts of the world. To insure uniformity in their product, the variances of the weights of the bottles at the two plants should be equal. But John, the company's vice president of quality assurance, suspects that the variance at bottling plant A is less than the variance at bottling plant B. To test his suspicions, John samples 33 bottles from bottling plant A and 35 bottles from bottling plant B, with the following results (in ounces): Bottling Plant A: 12.9, 14.2, 13.7, 13.2, 13.8, 12.6, 14.5, 14.2, 13.3, 14.2, 13.4, 13.1, 13.1, 13.1, 13.9, 14, 13.4, 12.8, 13.7, 12.8, 12.8, 13.6, 12.8, 13.1, 13.3, 12.2, 12.6, 12.4, 12.7, 13.6, 13, 13.1, 13.4 Bottling Plant B: 13.3, 13.7, 13.4, 13.5, 12.6, 12.6, 13, 14.4, 13.1, 13.1, 13.4, 13.7, 12.6, 13.7, 13, 12.5, 12.7, 13.4 13.8, 12.8, 12.8, 12.9, 13.6, 13.2, 13.2, 14, 13.2, 13.1, 14.3, 13.6, 13.4, 13.2, 13, 13.1, 12.8 Perform a hypothesis test using a 8% evel of significance to test John's suspicions. Step 1: State the null and alternative hypotheses. Ho: 1 Ho: 1 MY test ) .ateiled

A beverage company has two bottling plants in different parts of the world. To insure uniformity in their product, the variances of the weights of the bottles at the two plants should be equal. But John, the company's vice president of quality assurance, suspects that the variance at bottling plant A is less than the variance at bottling plant B. To test his suspicions, John samples 33 bottles from bottling plant A and 35 bottles from bottling plant B, with the following results (in ounces): Bottling Plant A: 12.9, 14.2, 13.7, 13.2, 13.8, 12.6, 14.5, 14.2, 13.3, 14.2, 13.4, 13.1, 13.1, 13.1, 13.9, 14, 13.4, 12.8, 13.7, 12.8, 12.8, 13.6, 12.8, 13.1, 13.3, 12.2, 12.6, 12.4, 12.7, 13.6, 13, 13.1, 13.4 Bottling Plant B: 13.3, 13.7, 13.4, 13.5, 12.6, 12.6, 13, 14.4, 13.1, 13.1, 13.4, 13.7, 12.6, 13.7, 13, 12.5, 12.7, 13.4 13.8, 12.8, 12.8, 12.9, 13.6, 13.2, 13.2, 14, 13.2, 13.1, 14.3, 13.6, 13.4, 13.2, 13, 13.1, 12.8 Perform a hypothesis test using a 8% evel of significance to test John's suspicions. Step 1: State the null and alternative hypotheses. Ho: 1 Ho: 1 MY test ) .ateiled

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 24PPS

See similar textbooks

Similar questions

An agronomist undertook an experiment to investigate the factors that potato harvest. In his research, agronomist decided to divide the farm into 30 half hectare plots and apply varies level of fertilizer. Potato was then planted and the harvest at the end of the season was recorded. Fertilizer(Kg) Harvest (tons) 210 43.5 220 40.0 230 48.0 240 65.0 250 80.0 260 85.0 270 95.0 280 80.0 290 97.3 1. Find the simple regression line and interpret the coefficients. 2. Find the coefficient of determination and interpret its value. 3. Does the model appear to be a useful tool in predicting the potato harvest? If so, predict the harvest when 250KG of fertilizer is applied. If not explain why not.
An agronomist undertook an experiment to investigate the factors that potato harvest. In his research, agronomist decided to divide the farm into 30 half hectare plots and apply varies level of fertilizer. Potato was then planted and the harvest at the end of the season was recorded. Fertilizer(Kg) Harvest (tons) 210 43.5 220 40.0 230 48.0 240 65.0 250 80.0 260 85.0 270 95.0 280 80.0 290 97.3 Note: No excel ANOVA output allowed. Students need to show all the steps in calculations. You are required to; Find the simple regression line and interpret the coefficients. Find the coefficient of determination and interpret its value. Does the model appear to be a useful tool in predicting the potato harvest? If so, predict the harvest when 250KG of fertilizer is applied. If not explain why not.
Burning fuels in power plants and motor vehicles emits carbon dioxide (CO2), which contributes to global warming. The CO2 emissions (metric tons per capita) for countries varies from 0.02 in Burundi to 44.02 in Qatar. Although the data set includes 214 countries, the CO2 emissions of 15 countries are not available on the World Bank database. The data set is too large to display but the data for the first five countries is given. Use the full data set with data on the 214 countries to answer the questions. To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV Crunchlt! Country CO2 Emissions (Metric Tons per Capita) Aruba 23.92 Andorra 5.97 Afghanistan 0.43 Angola 1.35 Albania 1.61 Find the mean and the median for the full data set. Round your answers to three decimal places. The mean for these data is tons per person The median for these data is tons per person
An agronomist undertook an experiment to investigate the factors that potato harvest. In his research, agronomist decided to divide the farm into 30 half hectare plots and apply varies level of fertilizer. Potato was then planted and the harvest at the end of the season was recorded. Fertilizer(Kg) Harvest (tons) 210 43.5 220 40.0 230 48.0 240 65.0 250 80.0 260 85.0 270 95.0 280 80.0 290 97.3 2. Find the coefficient of determination and interpret its value. 3. Does the model appear to be a useful tool in predicting the potato harvest? If so, predict the harvest when 250KG of fertilizer is applied. If not explain why not.
The Senator of Azenator State, is worried about the rising numbers in high blood pressure related deaths in his Jurisdiction and wants an end to this canker. A reputable medical research officer has claimed that, the situation is probably as a result of the ageing population of his State. The blood pressures, Y (mmHg), and Ages, X (years) of 10 hospital patients were sampled from Azenator State and summarized below. Patient A B C D E F G H I J Age(X) in Years 20 25 50 30 45 60 10 15 35 70 BP(Y) in (mmHg) 80 85 125 90 100 135 80 70 100 140 NB: Approximate to 2 decimal placesUse the table to answer the questions that follow;i) Calculate the product moment correlation coefficient for the data and interpret your result.ii) If the Senator decides to purchase and distribute Norvasc (a medicine that reduces blood pressure), based on your results in (i), which age group (youth or old adults) should be given priority? Briefly explain your answer. iii) Give a reason to support fitting…
Gyuri performed an analysis of Simvastatin tablets. The following are the data she obtained: 39.5 mg, 41.2 mg, 40.7 mg, 38.9 mg, 42.1 mg, 41.7 mg, 38.7 mg Suppose the mg of Simvastatin stated in label is 40 mg, is there a significant difference between her results and the label claim?
During a particularly dry growing season in a southern state, farmers noticed that there is a delicate balance between the number of seeds that are planted per square foot and the yield of the crop in pounds per square foot. The yields were the smallest when the number of seeds per square foot was either very small or very large. The data in the table show various numbers of seeds planted per square foot and yields (in pounds per square foot) for a sample of fields. A 2-column table with 15 rows. Column 1 is labeled number of seeds (per square foot) with entries 28, 75, 30, 43, 71, 35, 40, 59, 66, 79, 85, 81, 16, 33, 16. Column 2 is labeled yield (pounds per square foot) with entries 131, 171, 132, 166, 169, 150, 161, 183, 173, 161, 147, 157, 86, 145, 86. Which scatterplot represents the seed and yield data? A graph titled number of Seeds and Crop Yield has seeds (per square foot) on the x-axis, and yard (pounds per square foot) on the y-axis. The points curve up to a point, and…
A researcher working at Hershey's is interested in comparing two new chocolate bars: Chocolate Bar A versus Chocolate Bar B. The researcher expects the bars to be different in how much customers will eat per month. The researcher believes the more candy bars someone eats will indicate which one tastes the best. An experiment is designed to compare the two new bars. The number of candy bars eaten by one group of 8 people in a month is measured with Candy Bar A and then the number of candy bars eaten in the same month by another group of 8 participants is measured with Candy Bar B. Use the data below to determine if there is a difference in the consumption of the two candy bars. Candy Bar A Candy Bar B Number of Candy Bars eaten within a month 10, 30, 5, 35, 60, 3, 20, 30, 28, 27, 26, 27, 17, 25 12, 20 With a = .05, determine the critical value of t* that needs to be employed here. The value of the appropriate of t* is: 2.145 O 1.717 2.064 2.819 2.074 O The correct answer is not listed.
A researcher working at Hershey's is interested in comparing two new chocolate bars: Chocolate Bar A versus Chocolate Bar B. The researcher expects the bars to be different in how much customers will eat per month. The researcher believes the more candy bars someone eats will indicate which one tastes the best. An experiment is designed to compare the two new bars. The number of candy bars eaten by one group of 8 people in a month is measured with Candy Bar A and then the number of candy bars eaten in the same month by another group of 8 participants is measured with Candy Bar B. Use the data below to determine if there is a difference in the consumption of the two candy bars. Number of Candy Bars eaten within a month. Candy Bar A Candy Bar B 10, 30, 5, 35, 60, 3, 30, 28, 27, 26, 27, 20, 25 17, 12, 20 With a = .05, complete step 4 of the hypothesis testing procedure. What decision should the researcher make regarding "life" satisfaction and gender? The researcher should retain HO and…