Question

The manufacturer has produced 3 million of the same product over 1 month.The critical thickness of...

The manufacturer has produced 3 million of the same product over 1 month.The critical thickness of that product should be 3.9 mm, its population standard deviation should be 0.9mm,and its tolerance shuld be 0.47 mm as this product is going to be used in a specific application.Considering the %99 confidence level , how many product should be randomly chosen and tested for that critical thickness?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

thank you.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. In a destructive test of product quality, a briefcase manufacturer places each of a simple...
1. In a destructive test of product quality, a briefcase manufacturer places each of a simple random sample of the day’s production in a viselike device and measures how many pounds it takes to crush the case. From past experience, the standard deviation has been found to be 21.5 pounds. For 35 cases randomly selected from today’s production, the average breaking strength was 341.0 pounds. The lower confidence limit of 99% confidence interval for the mean breaking strength of the...
2. In a destructive test of product quality, a briefcase manufacturer places each of a simple...
2. In a destructive test of product quality, a briefcase manufacturer places each of a simple random sample of the day’s production in a viselike device and measures how many pounds it takes to crush the case. From past experience, the standard deviation has been found to be 21.5pounds. For 35 cases randomly selected from today’s production, the average breaking strength was 341.0 pounds. The upper confidence limit of 99% confidence interval for the mean breaking strength of the briefcases...
The Zambezi car battery manufacturer claims that the average lifespan of batteries produced by his firm...
The Zambezi car battery manufacturer claims that the average lifespan of batteries produced by his firm is at least 30 months. The rival manufacture the Rehoboth batteries disagree and took random sample of 100 Zambezi car batteries and recorded a mean of 31.7 months and a standard deviation of 8 months. (Show all your works) Determine the following: a) The null and alternative hypotheses 3 b) The test statistic value. 5 c) The critical statistics value at 99% confidence level...
Question 4 [25] The Zambezi car battery manufacturer claims that the average lifespan of batteries produced...
Question 4 [25] The Zambezi car battery manufacturer claims that the average lifespan of batteries produced by his firm is at least 30 months. The rival manufacture the Rehoboth batteries disagree and took random sample of 100 Zambezi car batteries and recorded a mean of 31.7 months and a standard deviation of 8 months. (Show all your works) Determine the following: a) The null and alternative hypotheses 3 b) The test statistic value. 5 c) The critical statistics value at...
Question 4 [25] The Zambezi car battery manufacturer claims that the average lifespan of batteries produced...
Question 4 [25] The Zambezi car battery manufacturer claims that the average lifespan of batteries produced by his firm is at least 30 months. The rival manufacture the Rehoboth batteries disagree and took random sample of 100 Zambezi car batteries and recorded a mean of 31.7 months and a standard deviation of 8 months. (Show all your works) Determine the following: a) The null and alternative hypotheses 3 b) The test statistic value. 5 c) The critical statistics value at...
A manufacturer of pharmaceutical products analyzes a specimen from each batch of a product to verify...
A manufacturer of pharmaceutical products analyzes a specimen from each batch of a product to verify the concentration of the active ingredient. The chemical analysis is not perfectly precise, but the company wants to know the true mean concentration. The laboratory analyzes each specimen 40 times and reports the sample mean concentration to be 0.8404 and the sample standard deviation to be 0.0420. 1. The manager of the research team claims that the true mean concentration is 0.88. Based on...
A manufacturer of pharmaceutical products analyzes a specimen from each batch of a product to verify...
A manufacturer of pharmaceutical products analyzes a specimen from each batch of a product to verify the concentration of the active ingredient. The chemical analysis is not perfectly precise, but the company wants to know the true mean concentration. The laboratory analyzes each specimen 40 times and reports the sample mean concentration to be 0.8404 and the sample standard deviation to be 0.0420. 1. The manager of the research team claims that the true mean concentration is 0.88. Based on...
A yo-yo company wants to boast that after 1 million throws, the strings on their yo-yos...
A yo-yo company wants to boast that after 1 million throws, the strings on their yo-yos still won't break. Someone in charge decides they should test the durability of their strings first so they get sued. They manufacture yo-yoing robots and randomly select 300 yo-yos to be tested. The results show an average of 999,986 throws before breaking some of the population standard deviation is 247 throws, you say hypothesis test at 99% confidence to see if the company will...
A car manufacturer advertises that its new ‘ultra-green’ car obtains on average 100 miles per gallon...
A car manufacturer advertises that its new ‘ultra-green’ car obtains on average 100 miles per gallon (mpg). A consumer advocacy group tested a sample of 25 cars. Each car was driven the same distance in similar conditions, and the following results on mpg were recorded: 112 111 85 88 99 96 83 87 101 102 113 93 102 92 96 79 117 113 90 78 98 89 99 102 96 Using Descriptive Statistics of Data Analysis of Excel with a...
Question 1 The production manager of a camera manufacturer claims that their latest digital camera is...
Question 1 The production manager of a camera manufacturer claims that their latest digital camera is able to focus in just 0.0025 seconds on the average. A random sample of the focus time in seconds for 20 cameras is collected and the times are recorded as follows: 0.0033 0.0028 0.0021 0.0032 0.0020 0.0025 0.0026 0.0022 0.0031 0.0033 0.0022 0.0025 0.0031 0.0024 0.0021 0.0023 0.0028 0.0031 0.0028 0.0035 a) In constructing a confidence interval estimate for the true average focus time,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT