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Suppose that 84% of the cases of car burglar alarms that go off are false. Let p be the proportion of false alarms in a random sample of 90 cases of car burglar alarms that go off. Calculate the mean and standard deviation of p and describe the shape of its sampling distribution. Round your answers to four decimal places if necessary The sampling distribution of is pis
Brooklyn Corporation manufactures DVDs. The machine that is used to make these DVDs is known to produce 6% defective DVDs. The quality control inspector selects a sample of 100 DVDs every week and inspects them for being good or defective. If % or more of the DVDs in the sample are defective, the process is stopped and the machine is read usted ha s the probability that based on a sample of 100 DVDs the process will be stopped to readjust the machine? Round your answer to four decimal places the tolerance is +/-5%
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A company makes auto batteries. They claim that 81% of their LL70 batteries are good for 70 month...
% of hem offer retirement plans o ther em A survey o all medium and large-sized corporations show...
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% of hem offer retirement plans o ther em A survey o all medium and large-sized corporations showed that ees. Let e proportion in a random sample of such. o e corporations that offer retirement plans to their employees Find the probability that the value of p will be a. between 0.54 and 0.61 b. greater than 0.71 Chapter 07, Section 7.6, Intelligent Tutoring Problem 063 First, find the following. nE Round answer to four decimal places....
Suppose that 84% of the cases of car burglar alarms that go off are false. Let...
Suppose that 84% of the cases of car burglar alarms that go off are false. Let p be the proportion of false alarms in a random sample of 90 cases of car burglar alarms that go off. Calculate the mean and standard deviation of p and describe the shape of its sampling distribution. Round your answers to four decimal places if necessary The sampling distribution of is p is is skewed to the right is approximately normal
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes. If the claim is true, in a sample...
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of 6724 with a mean life of 645 minutes. If the claim is true, in a sample of 152 batteries, what is the probability that the mean battery life would differ from the population mean by more than 8 minutes? Round your answer to four decimal places.
In 2008 the Better Business Bureau settled 70% ce complaints it received (USA Today, March 2,...
In 2008 the Better Business Bureau settled 70% ce complaints it received (USA Today, March 2, 2009), suppose you have been this year involving proportion of complaints settied for new car dealers is 0.7, the same as the overall proportion of complaints settled in 2008 Round your answers to four decimal places a. Suppose you select a sample of 450 complaints involving new car dewiers. Show the sampling d hired by the Better Business Bueau te invesigate the complaints t...
A consumer advocate claims that 70 percent of cable television subscribers are not satisfied with their...
A consumer advocate claims that 70 percent of cable television subscribers are not satisfied with their cable service. In an attempt to justify this claim, a randomly selected sample of cable subscribers will be polled on this issue. (a) Suppose that the advocate's claim is true, and suppose that a random sample of 4 cable subscribers is selected. Assuming independence, use an appropriate formula to compute the probability that 3 or more subscribers in the sample are not satisfied with...
A consumer advocate claims that 70 percent of cable television subscribers are not satisfied with their...
A consumer advocate claims that 70 percent of cable television subscribers are not satisfied with their cable service. In an attempt to justify this claim, a randomly selected sample of cable subscribers will be polled on this issue. (a) Suppose that the advocate's claim is true, and suppose that a random sample of 5 cable subscribers is selected. Assuming independence, use an appropriate formula to compute the probability that 3 or more subscribers in the sample are not satisfied with...
Suppose a simple random sample of size n=1000 is obtained from a population whose size is...
Suppose a simple random sample of size n=1000 is obtained from a population whose size is N=1,000,000 and whose population proportion with a specified characteristic is p=0.56. Complete parts (a) through (c) below Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2) (a) Describe the sampling distribution of p O A. Approximately normal, A=0.56 and CAR 0.0005 OB. Approximately normal, Ha=0.56 and 0.0002 &c. Approximately normal, p=0.56...
Furniture manufacturing companies often deal with the quality of the drilling of dowel holes. Consider the...
Furniture manufacturing companies often deal with the quality of the drilling of dowel holes. Consider the case of Company X, which believes that when the drilling process is operating at an acceptable rate, the upper limit on the percentage of incorrectly drilled dowel holes is 8%. To monitor its drilling process, the company randomly samples 12 products each hour and determines if the dowel hole in each product is correctly drilled or not. If, in the sample of 12 holes,...
A camping equipment company purchases small light bulbs from another company for use in flashlights. The...
A camping equipment company purchases small light bulbs from another company for use in flashlights. The bulbs are shipped in large lots, with several hundred bulbs in each lot. When a lot is received, a random sample of 50 of the bulbs is selected and tested to see if they are good (i.e., not burned out). If more than 3 of the bulbs in the sample fail to light up when tested, the company rejects the entire lot and returns...
I need help!! PLEASE DONT USE THE STANDARD NORMAL DISTRIBUTION TABLE. Instead use normalcdf or formula...
I need help!! PLEASE DONT USE THE STANDARD NORMAL
DISTRIBUTION TABLE. Instead use normalcdf or formula as part of
your answer.
Thank you
* 8.2.16 Question Help According to a study, the proportion of people who are satisfied with the way things are going in their lives is 0.78. Suppose that a random sample of 100 people is obtained Complete parts (a) through (e) below Cick here to view the standard romal disibution table. Image 11. Click here to view...
1.
2.
3.
% of hem offer retirement plans o ther em A survey o all medium and large-sized corporations showed that ees. Let e proportion in a random sample of such. o e corporations that offer retirement plans to their employees Find the probability that the value of p will be a. between 0.54 and 0.61 b. greater than 0.71 Chapter 07, Section 7.6, Intelligent Tutoring Problem 063 First, find the following. nE Round answer to four decimal places....
Suppose that 84% of the cases of car burglar alarms that go off are false. Let p be the proportion of false alarms in a random sample of 90 cases of car burglar alarms that go off. Calculate the mean and standard deviation of p and describe the shape of its sampling distribution. Round your answers to four decimal places if necessary The sampling distribution of is p is is skewed to the right is approximately normal
In 2008 the Better Business Bureau settled 70% ce complaints it received (USA Today, March 2, 2009), suppose you have been this year involving proportion of complaints settied for new car dealers is 0.7, the same as the overall proportion of complaints settled in 2008 Round your answers to four decimal places a. Suppose you select a sample of 450 complaints involving new car dewiers. Show the sampling d hired by the Better Business Bueau te invesigate the complaints t...
Suppose a simple random sample of size n=1000 is obtained from a population whose size is N=1,000,000 and whose population proportion with a specified characteristic is p=0.56. Complete parts (a) through (c) below Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2) (a) Describe the sampling distribution of p O A. Approximately normal, A=0.56 and CAR 0.0005 OB. Approximately normal, Ha=0.56 and 0.0002 &c. Approximately normal, p=0.56...
A camping equipment company purchases small light bulbs from another company for use in flashlights. The bulbs are shipped in large lots, with several hundred bulbs in each lot. When a lot is received, a random sample of 50 of the bulbs is selected and tested to see if they are good (i.e., not burned out). If more than 3 of the bulbs in the sample fail to light up when tested, the company rejects the entire lot and returns...
I need help!! PLEASE DONT USE THE STANDARD NORMAL
DISTRIBUTION TABLE. Instead use normalcdf or formula as part of
your answer.
Thank you
* 8.2.16 Question Help According to a study, the proportion of people who are satisfied with the way things are going in their lives is 0.78. Suppose that a random sample of 100 people is obtained Complete parts (a) through (e) below Cick here to view the standard romal disibution table. Image 11. Click here to view...
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