The head of a chocolate factory called you to check whether the production follows the requirements. Chocolate bars should individually weigh 43 grams. You have collected a sample of 105 bars, with an average weight of 39.5 grams and a standard deviation of 2.35 grams. Let Hold and pnew be the required weight of a chocolate bar and the average weight of sampled chocolate bars respectively. Let up be the mean of the differences between the required weight of a chocolate bar and the average weight of sampled chocolate bars. Part (A) Using a significance of 0.01, does the weight average match the requirements? Specify the null and alternative hypotheses. O (a) Ho: Hnew-Hold 20, H: Hnew Hold <0 O (b) Ho : µp <0, H1: up 2 0 O (c) Ho: µp 0, H1: µD= 0 O (d) Ho: µnew- Hold 0, H1: Hnew- Hold>0 O (e) Ho : µp > 0, H1 : µp S O () Ho: Hnew - Hold = 0, H1:µ-Hold #0 O (g) Ho : µnew – Hold 7 0, H1:µnew Hold = 0 O (h) Ho : Hnew Hold <0, Hị: Hnew Hold > 0 O Ho: HD= 0, H1 : µp#0 O ) Ho: µnew – Hold > 0, H1: Pnew - Hold <0 O (k) Ho : µD <0, H1 : µp > 0 O () Ho: HD 2 0, H1: Hp<0 Calculate the absolute value of the test statistic. number (rtol=D0.01, atol=D0.0001) Calculate the absolute value of the test statistic that would correspond to a= 0.01. number (rtol=D0.01, atol=D0.0001) State your decision. O (a) Reject HO

Q: The election results were announced in a country. The number of seats in state Mozi had a mean of…

A:

Q: Dr. Samwell Tarly wants to estimate the number of books checked out of the library in the past year.…

A: It is given that the mean is 10,000 and the standard deviation is 10.

Q: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

A: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

Q: Brewed decaffeinated coffee contains some caffeine. VWe want to estimate the amount of caffeine in 8…

A: Obtain the 90% confidence interval for the population mean.   The 90% confidence interval for the…

Q: A college was conducting a phonaton to raise money to increase students’ scholarships. The president…

A: The observations of the amount pledged (in thousands of dollars) are as follows:16, 18, 11, 17, 13,…

Q: a bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean…

A: We have to find 60th percentile.

Q: The average McDonald's restaurant generates $3.6 million in sales each year with a standard…

A: For the MacDonald's restaurant the following information is provided. Average μ=3.6  Standard…

Q: Suppose the life span of a brand of lightbulbs is normally distributed with a mean of 2000 hours and…

A: It is given that  Mean, μ = 2000 Standard deviation, σ = 320 Z-Score, Z = ( X - μ )/σ

Q: Russell is doing some research before buying his first house. He is looking at two different areas…

A:

Q: The average McDonald's restaurant generates $2.3 million in sales each year with a standard…

A: Here, population standard deviation is known, so we can perform a z-test .

Q: In the past, the value of houses a local realtor has sold is normally distributed with a mean of…

A: We have to find given score.

Q: The mean height for women in the United States is approximately 64.5 inches with a standard…

A: Formula : Z =(X - μ)/σ

Q: Tom scored a 117 on a measure of math ability and a 41 on a measure of verbal ability. The means and…

A:

Q: A vending machine dispenses coffee into a twenty-ounce cup. The amount of coffee dispensed into the…

A: A vending machine dispenses coffee into a twenty-ounce cup. Given that σ=0.01 You can allow the cup…

Q: ctrical customers are often told what the average amount of electricity is used for similar homes in…

A: The mean is μ=1650Standard deviation is σ=320z-value at 86% confidence is Zc=1.18x=?

Q: Chris tested a sample of 20 Brand A electronic engine control modules, and they lasted 48,560…

A: The sample mean and standard deviation for Brand A electronic engine control modules is;…

Q: e. Compare the results of parts (a) through (d) to those when the standard deviation is 0.030. When…

A: We have given that  e) standard deviation sigma =0.030 , ZSTAT= -1.24 and p-value =0.216 99%…

Q: Brewed decaffeinated coffee contains some caffeine. We want to estimațe the amount of caffeine in 8…

A: Obtain the 90% confidence interval estimate for the true mean amount of caffeine in eight-ounce cups…

Q: Woodland and Clear Beach are schools in different states, Alan is a student at Woodland and is 56…

A: a) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Consider the data:  10, 7, 9, 13, 11, 13, 14.  (Show your work.) a)Determine the mean.…

A:

Q: 20, 23, 25, 28, 30, 32, 35, 35 Mean = Median = Mode = Standard Deviation II

A:

Q: Who has the larger dog relative to their breed?

A: It is given that For Golden Retriever, X = 70.2, mean = 67 and SD = 2.5 For St Bernard, X = 215,…

Q: We considered the differences between the temperature readings in January 1 of 1968 and 2008 at 51…

A:

Q: A manufacturer claims that the mean lifetime of its lithium batteries is 1400 hours. A homeowner…

A:

Q: The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one…

A: In this intriguing analysis centered around traffic speeds near Johnson City High School, the…

Q: The average McDonald's restaurant generates $3.6 million in sales each year with a standard…

A: In this question given that survey of 27 restaurant Find out a null and alternative hypothesis…

Q: A sample of data is given as below:3, 5, 7. What is the standard deviation

A: The formula for sample standard deviation is,

Q: You may need to use the appropriate technology to answer this question. Data were collected on the…

A: Given,