1038 Words5 Pages

1. The data below represent the amount of grams of carbohydrates in a serving of breakfast cereal in a sample of 12 different servings. 11 20 28 33 37 22 21 14 44 25 17 29 a. The arithmetic mean carbohydrates in this sample is ________ grams. b. The median carbohydrate amount in the cereal is ________ grams. c. The range in the carbohydrate amounts is ________ grams. d. The standard deviation of the carbohydrate amounts is ________ grams. e. Construct a box-and-whisker plot for the carbohydrate amounts. f. What type of shape does the distribution of the sample appear to have?
2. A set of final examination grades in COMM 291 is normally distributed with a mean of
73 and a standard deviation of 8. What is the probability of getting a grade of 91 or less on this exam? 3. The average score of all students in COMM 291 is normally distributed with a mean of 73 and a standard deviation of 8. Suppose another 30 students will take the course next term. Find the probability that the average score of the 30 students will exceed 65. 4. An appliance manufacturer claims to have developed a compact microwave oven that consumes an average of no more than 252 W. From previous studies, it is believed that power consumption for microwave ovens is normally distributed with a standard deviation of 10 W. A consumer group has decided to try to discover if the claim appears true. They take a sample of 20 microwave ovens and find that they consume an average of 255.6 W. a. b. c. d. e. f. Write down the appropriate hypotheses. For a test with a level of significance of 0.05, the critical value would be ________. The value of the test statistic is ________. The p value of the test is ________. Should the null hypothesis be rejected or not given the significance level of 5%? True or False: The consumer group can conclude that there is enough evidence to prove that the manufacturer’s claim

Related

## Expirment 2 Calorie Content

363 Words | 2 PagesMorgan Stanley Experiment 7: Calorie Content of Food Report submitted:3/9/2013 Title: Calorie Content of Food Purpose: To measure the energy content of various food items and to become familiar with energy units like calories and joules. Procedure: measure the energy content of a variety of foods by burning a portion of food and capturing the heat released to a known mass of water in a calorimeter and identify units of measuring heat such as calories and joules. Data: | Marshmallow | Peanut | Popcorn | Food Item Description | Small & White | Small & Salted | Extra Butter | Mass of food & holder – initial | 15.2 | 17.3 | 14.9 | Mass of food & holder – final | 13.7 | 12.5 | 11.4 | Mass of food burnt | .70g | .5g | 0g | Mass of beaker | 4.2 | 4.2 | 4.2 | Mass of beaker & water | 54.2 | 54.2 | 54.2 | Mass of water | 39.9 | 42.6 | 44.83 | Water temp. – initial | 48 | 45 | 47 | Water temp. – final | 36 | 33 | 46 | Delta T (oC change | 12C | 12C | 1 C | Questions: A.

## Formulary Assignment Essay

422 Words | 2 PagesWhite Rice 25kg/case 125g 356gm 28.59 gm 0.21 gm 2.38gm 12.Cream of celery soup 6/case 120ml 181ml 17.65 ml 11.19 3.31 Section 1.2: Specify Primary Indication for the Items Listed Below: Supplement Name and Description Primary Use ( Oral/ Tube Feeds, Other) 1. Jevity 1.5 cal Tube Pros: Source of Complete nutrition with fiber. Corns: not for people with galactaoaemia 2.Osmolite Tube Pros: complete balance diet Corns: Not for people with galactosemia. 3. Glytrol Oral and

## Managerial Statistics Essay

515 Words | 3 PagesThe population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches. What is the probability that a sheet selected at random from the population is between 29.75 and 30.5 inches long? (Points : 5) .4332 .4878 .0546 .9210 | 3. During the past six months, 73.2% of US households purchased sugar. Assume that these expenditures are approximately normally distributed with a mean of $8.22 and a standard deviation of $1.10.

## Real World Applications of Number Theory

2893 Words | 12 PagesReal World Applications of Number Theory A. Rounding and Truncation 1. Student 1 received a score of 299 out of a possible 334 points for a term in an unknown class. To find what percentage the student received, one must take the score received and divide it by the total amount of points possible, and then multiply the quotient by 100. In this particular case, the teacher chose to use rounding to attain the final grade of the student. To round to the nearest whole number, one must consider the value in the tenths place.

## Cheddar Cheese Project

260 Words | 2 PagesJennifer Olivo MAT096 Farah Ahmad December 14, 2012 Figure 1(b) presents cheddar cheese nutrition facts and provides information on what the surgeon and nutritionists recommend in order to maintain a healthy, nutritious diet (based on a maximum daily consumption of 2000 calories per day). Examine Figure 1(b) and complete the sentences below by filling in the blanks: * What is the serving size? (in grams) 132 g * How many calories are there per serving? 532 * How much calcium do you ingest in one serving? (in percentage) 95 % * How much saturated fat do you ingest in one serving?

## Hanna Corporation Essay

754 Words | 4 PagesHanna economists have determined that the arc price elasticity for this microwave oven is 1.2. (a) | In 2011 Hanna is planning to lower the price of the microwave oven to $325. Forecast sales volume for 2011 assuming that all other things remain equal. | (b) | However, in checking with government economists, Hanna finds that per capita disposable income is expected to rise to $7,000 in 2011. In the past the company has observed an arc income elasticity of +2.5 for microwave ovens.

## Gravimetric Determination Of Phosphorus

954 Words | 4 PagesPurpose: To find the percent of phosphorus in known compound MgNH4PO4*6H2O using gravimetric analysis. Procedure: 1. Weigh by difference to the nearest hundreth gram .75 of your unknown sample, using weighing paper. Using solualbe Expert plant food label percentate 30% P2O5. 2.

## Ap Bio Lab Report Osmolarity

630 Words | 3 PagesTo do this I took the molar mass of sugar, 342.30g and multiplied it by .1. Then I separately multiplied 34.23 by .2, .4, .6, .8, and 1. After

## A Statistical Hypothesis Is an Assumption About a Population Parameter. This Assumption May or May Not Be True. Hypothesis Testing Refers to the Formal Procedures Used by Statisticians to Accept or Reject Statistical Hypotheses.

323 Words | 2 PagesApply the decision rule described in the analysis plan. If the value of the test statistic is unlikely, based on the null hypothesis, reject the null hypothesis. Decision Errors: - Two types of errors can result from a hypothesis test. Type I error. A Type I error occurs when the researcher rejects a null hypothesis when it is true.

## Nutrition: Macro and Micro Nutrients

1471 Words | 6 PagesWhat specific macro and micro-nutrients, and in what amount, equal ‘optimum nutrition’? What is considered Optimum nutrition? For adults, optimum nutrition is defined as “the amount of protein, that stimulates whole body protein synthesis maximally (1.7 g/kg actual body weight) and covers anabolic energy need (35 kcal/kg actual bodyweight)” as stated in (Jonkers et.al 2001). Scientists, conducting and analysing large

### Expirment 2 Calorie Content

363 Words | 2 Pages### Formulary Assignment Essay

422 Words | 2 Pages### Managerial Statistics Essay

515 Words | 3 Pages### Real World Applications of Number Theory

2893 Words | 12 Pages### Cheddar Cheese Project

260 Words | 2 Pages### Hanna Corporation Essay

754 Words | 4 Pages### Gravimetric Determination Of Phosphorus

954 Words | 4 Pages### Ap Bio Lab Report Osmolarity

630 Words | 3 Pages### A Statistical Hypothesis Is an Assumption About a Population Parameter. This Assumption May or May Not Be True. Hypothesis Testing Refers to the Formal Procedures Used by Statisticians to Accept or Reject Statistical Hypotheses.

323 Words | 2 Pages### Nutrition: Macro and Micro Nutrients

1471 Words | 6 Pages