A light bulb manufacturer guarantees that the mean life of

Assignment Help Basic Statistics
Reference no: EM13635685

A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 875 hours .A random sample of 58 light bulbs has a mean life of 852 hours with a standard deviation of 95 hours. Do you have enough evidence to reject the manufacturer's claim? Use a = 0.09.

A. Identify the null hypothesis and alternative hypothesis.

B. Identify the critical value (s). Use a comma to separate answers as needed

C. Identify the standardized test statistic.

D. Decide whether to reject or fail to reject the null hypothesis.

Reference no: EM13635685

Questions Cloud

Thionyl chloride socl2 is used as a very powerfuldrying : thionyl chloride socl2 is used as a very powerfuldrying agent in many synthetic chemistry experiments in which
The amount by which the first liquid will fall on the : the u-tube manometer has legs of unequal internal diameter d1 and d2 which are partially filled with immiscible liquids
Although we usually think of substances as burning only in : although we usually think of substances as burning only in oxygengas the process of rapid oxidation to produce a flame
Thiamine hydrochloridec12h18on4scl2 is awater soluble form : thiamine hydrochloridec12h18on4scl2 is awater soluble form of thiamine vitamin b1 ka3.37 x 10-7. how many grams of the
A light bulb manufacturer guarantees that the mean life of : a light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 875 hours .a random
0300 moles of an unknown monobasic weak acid are added to : 0.300 moles of an unknown monobasic weak acid are added to 1.20 l of water. the resulting solution has a ph of 8.800.
How much smaller will your error be if you use the : a researcher measures how positive a persons mood is and how creative he or sheis obtaining the following interval
The frequency of the siren sound she hears is 85 hz and as : shelias car is stopped at a traffic light. she is sitting in the car waiting for the light to turn green. suddenly from
A doctor wants to estimate the hdl cholesterol of all 20- : a doctor wants to estimate the hdl cholesterol of all 20- to 29-year-old females. how many subjects are needed to

Reviews

Write a Review

Basic Statistics Questions & Answers

  Information about two way anova in spss

Time to help a stranger was investigated by a group of undergraduate psychology majors as a part of their Introduction to Research Methods course.

  There are 6 different colored kittens at the pet store

there are 6 different colored kittens at the pet store brown white black calico orange and gray. if annies family wants

  Stating decision rule for significance level

State the decision rule for .05 significance level. (Round your answer to 3 decimal places.)

  Find the conditional probability mass function of the

the arrival of cars at a toll booth can be modeled by a poisson pro- cess. between 1100am and 1200pm cars arrive at an

  Probability for a silver dollar

A silver dollar is flipped twice. Calculate the probability of each of the following occurring:

  Sampling variability and standard error

Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5.

  Hypothesis testing-before and after

The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).

  Find different sandwiches can the restaurant make

There are three types of bread, three types of meat, three types of cheese, and four types of topping. How many different sandwiches can the restaurant make?

  Test whether there is difference in mean salary of men-women

Using the Hypothesis Tests Two Sample file and a .05 significance level, test whether there is a difference in the mean salary for men versus women.

  Assume the mean shift is 15sigma sigma is the process

a what are the control limits for x-bar control charts with alpha 0.002 probability limit and sample size of 4?b

  Problem on population distribution

What is the probability that the value of the average score for this sample will lie in the internal 970 and 1030? Assume that the population distribution is normal.

  Lp for minimum location distribution

Formulate and solve a 0-1 integer linear program model that can be used to find the minimum number of locations necessary to provide coverage to all areas. Clearly indicate your linear program model.

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