In a manufacturing process a random sample of 49 bolts

Assignment Help Basic Statistics
Reference no: EM13618159

In a manufacturing process a random sample of 49 bolts manufactured has a mean length of 1.67 inches with a standard deviation of .07 inches. What is the 80% confidence interval for the mean

The 80% confidence interval is (?- , -?-)

Reference no: EM13618159

Questions Cloud

Determine a the net power developed in mw b the rate of : air enters the compressor of an air-standard brayton cycle with a volumetric flow rate of 60 m3s at 0.8 bar 280 k. the
How many binary sequences of length 18 are there that start : how many binary sequences of length 18 are there that start with a run of 1s - that is a conseuctive sequence of at
She obtained a random sample of n 25 drivers in the : the average age for licensed drivers in a county is micro 42.6 ? 12 and the distribution is approximately normal. a
In a manufacturing process a random sample of 49 bolts : in a manufacturing process a random sample of 49 bolts manufactured has a mean length of 1.67 inches with a standard
In a manufacturing process a random sample of 49 bolts : in a manufacturing process a random sample of 49 bolts manufactured has a mean length of 1.67 inches with a standard
If the odds makers do this accurately adding the spread to : odds makers try to predict which professional and college football teams will win and by how much the spread. if the
A 137-cs source has an acticity of 700 mu ci a gamma proton : a 137-cs source has an acticity of 700 mu ci. a gamma proton with energy 0.662 mev is emitted with a frequency of 0.849
Assuming that it is reasonable to regard this sample of 490 : in a survey of 490 potential jurors one study found that 350 were regular watchers of at least one crime-scene
The critical resolved shear stress for a metal is 25 mpa : consider a single crystal oriented such that the slip direction and normal to the slip plane are at angles 42.7deg and

Reviews

Write a Review

Basic Statistics Questions & Answers

  Chebyshev''s vs. the empirical theorem/rule

1. Chebyshev's vs. the empirical theorem/rule.

  Description of p-value for coin

A coin tossed 100 times and 530 heads appear. At a=0.05, test the claim that this is a non biased coin. Use a P-Value. does this suggest the coin is fair?

  Mean life for shipment of lightbulbs

The quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of light bulbs is equal to 375 hours. The population standard deviation is 100 hours.

  For the dataset test if there is a difference in the

for the dataset test if there is a difference in the variances of the passes completed by the two players using ? 0.01

  Error between the sample mean and population mean

A random sample obtained from a population has a mean of µ=100 and a standard deviation of σ = 20. The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean ..

  Is there enough evidence to support claim at alpha

A random sample of 100 automobiles has a mean speed of 36 miles per hour and a standard deviation of 5 miles per hour. Is there enough evidence to support the claim at alpha=0.05?

  Determining the essential sample size

New study is to use 90% confidence level. Estimate is to be within 1 percent of population proportion. Determine the essential sample size?

  Mcqs on time series-statistics

The overall model statistically adequate at a 0.05 level of significance for predicting sale price(y)? For a moving average which is not true?

  Confidence interval for true mean total cholesterol levels

Cholesterol levels are measured as followed: 185 225 240 196 175 180 194 147 223. Generate a 95% confidence interval for the true mean total cholesterol levels in children?

  Difference between a z-test and a t-test

What is the difference between a z-test and a t-test? When estimating population mean, how would you determine the optimal sample size when the maximum error limit is known

  Distribution of sample proportions

Suppose that a large corporation surveys all of their employees, and finds that 24% of them carry secondary health insurance. A representative from GoldStar Care visits 100 employees

  A quality-control technician must select a sample of 10

a quality-control technician must select a sample of 10 dresses from a production lot of 74 couture dresses. how many

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd