I Posted this question two days ago but the answers was given using p-values and I want it using confidence intervals. Thank you for all of your help. A telephone company claims that 20% of its custom...
I Posted this question two days ago but the answers was given using p-values and I want it using confidence intervals. Thank you for all of your help.
A telephone company claims that 20% of its customers have at
least two telephone lines.
The company selects a random sample of 500 customers and finds that
88 have two or
more telephone lines. If alpha = 0.05, test the company's claim
using confidence intervals.
Homework Answers
as test statistic does not fall in rejection region we can not reject null hypothesis
we do not have sufficient evidence at 0.05 level to reject the claim that 20% of its customers have at least two telephone lines.
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I Posted this question two days ago but the answers was given using p-values and I want it using confidence intervals. Thank you for all of your help. A telephone company claims that 20% of its custom...
A telephone company claims that 20% of its customers have at least 2 telephone lines. The...
A
telephone company claims that 20% of its customers have at least 2
telephone lines. The company selects a random sample of 500
customers and finds that 88 have two or more telephone lines. If
Alfa = 0.05, test the company's claim.
A telephone company claims that 20% of its customers have at least 2 telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If Alfa = 0.05,...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is p> 0.015 and the sample size is n-150 Use the normal distribution O Do not use the normal distribution QUEST 12.5 points Save Answer A telephone company claims that 20% of its customers have at least two telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If a= 0.05, test the company's...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a home security alarm. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning State the null hypothesis in words and in symbols. Choose the correct answer below. O A. The null hypothesis expressed in words is, "the proportion of all homeowners who own a home security alarm is...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
A
telephone company claims that 20% of its customers have at least 2
telephone lines. The company selects a random sample of 500
customers and finds that 88 have two or more telephone lines. If
Alfa = 0.05, test the company's claim.
A telephone company claims that 20% of its customers have at least 2 telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If Alfa = 0.05,...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is p> 0.015 and the sample size is n-150 Use the normal distribution O Do not use the normal distribution QUEST 12.5 points Save Answer A telephone company claims that 20% of its customers have at least two telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If a= 0.05, test the company's...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a home security alarm. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning State the null hypothesis in words and in symbols. Choose the correct answer below. O A. The null hypothesis expressed in words is, "the proportion of all homeowners who own a home security alarm is...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
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