The article “How to Block Nuisance Calls” reported that in a survey of mobile phone users,...
The article “How to Block Nuisance Calls” reported that in a survey of mobile phone users, 70% of those surveyed said that they received at least one nuisance all to their mobile phone in the last month. Suppose that this estimate was based on a representative sample of 600 mobile phone users. Using a significance level of 0.05, determine if there is evidence that more than 66% of all mobile phone users have received at least one nuisance call in the last month.
Fill in the hypotheses with the hypothesized value and inequality if appropriate. (without spaces between inequality and value)
Ho : p =
Ha: p
What is the value of the test statistic? Round to the appropriate decimals.
What is the P-value of the test statistic? Round to 4 decimals.
What is the conclusion of the hypothesis test? (Reject the null or Fail to reject the null)
Is there sufficient evidence to support the claim that more than 66% of mobile phone users recieved at least one nuisance call last month? (Yes or No)
Homework Answers
Add Answer to:
The article “How to Block Nuisance Calls” reported that in a
survey of mobile phone users,...
A phone manufacturer wants to compete In the touch screen phone market. He understands that the...
A phone manufacturer wants to compete In the touch screen phone market. He understands that the lead product has a battery life of Just 5 hours. The manufacturer clalms that whlle the new touch screen phone Is more expenslve, ts battery lfe Is more than twice as long as that of the leading product. In order to test the clalm, a researcher samples 45 unlts of the new phone and finds that the gample battery lfe averages 10.5 hours with...
Are phone calls equally likely to occur any day of the week? The day of the...
Are phone calls equally likely to occur any day of the week? The day of the week for each of 504 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.05 significance level. Complete the rest of the table by filling in the expected frequencies: Frequencies of Phone Calls for Each Day of the Week Outcome Frequency Expected Frequency Sunday 56 Monday 52 Tuesday 61 Wednesday 92 Thursday 73 Friday...
A phone manufacturer wants to compete in the touch screen phone market. He understands that the...
A phone manufacturer wants to compete in the touch screen phone market. He understands that the lead product has a battery life of just 5 hours. The manufacturer claims that while the new touch screen phone is more expensive, its battery life is more than twice as long as that of the leading product. In order to test the claim, a researcher samples 45 units of the new phone and finds that the sample battery life averages 10.5 hours with...
Are phone calls equally likely to occur any day of the week? The day of the...
Are phone calls equally likely to occur any day of the week? The day of the week for each of 525 randomly selected phone calls was observed. The results are displayed in the table below. Use an αα = 0.05 significance level. Complete the rest of the table by filling in the expected frequencies: Frequencies of Phone Calls for Each Day of the Week Outcome Frequency Expected Frequency Sunday 80 Monday 73 Tuesday 69 Wednesday 71 Thursday 80 Friday...
Website design options include mobile-first (structured to optimize performance for users on phones and mobile devices)...
Website design options include mobile-first (structured to optimize performance for users on phones and mobile devices) and responsive design (structured to optimize performance for users on desktop computers). Data were collected based on a random sample of the number of times users complained about website design on a given day. Five non-profit organizations with mobile-first design were studied, as well as six non-profit organizations with responsive design. The organizations are roughly comparable in terms of number of visitors and target...
In a clinical trial, 25 out of 857 patients taking a prescription drug daily complained of...
In a clinical trial, 25 out of 857 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 2.4% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.4% of this drug's users experience fiulike symptoms as a side effect at the a=0.05 level of significance? Because np. (1-Po) - 10. the sample size is 5% of the population size, and the sample the requirements...
10.2.17 Homework Help! In a clinical trial, 18 out of 846 patients taking a prescription drug...
10.2.17 Homework Help!
In a clinical trial, 18 out of 846 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience flulike symptoms as a side effect at the a = 0.01 level of significance? Because npo (1-P) = 15 > 10, the sample size is less than 5%...
In a clinical trial, 18 out of 840 patients taking a prescription drug daily complained of...
In a clinical trial, 18 out of 840 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of Puike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience fiulike symptoms as a side effect at the a= 0.05 level of significance? Because np. (1-P) O10, the sample size is 5% of the population size, and the sample the requirements...
In a clinical trial, 18 out of 853 patients taking a prescription drug daily complained of...
In a clinical trial, 18 out of 853 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience flulike symptoms as a side effect at the a = 0.01 level of significance? Because npo (1 - Po) 10, the sample size is 5% of the population size, and the...
In a random sample of 125 adults, 64% say they have used a cellular phone to...
In a random sample of 125 adults, 64% say they have used a cellular phone to access the Internet. We want to test a researcher’s claim at the 5% significance level that more than 60% of U.S. adults have used a cellular phone to access the Internet. [2 points] Find the null and alternate hypotheses. [6 points] By hand, showing work, find the test statistic. [4 points] Sketch the sampling distribution labeling the test statistic and the P-value. [2 points]...
A phone manufacturer wants to compete In the touch screen phone market. He understands that the lead product has a battery life of Just 5 hours. The manufacturer clalms that whlle the new touch screen phone Is more expenslve, ts battery lfe Is more than twice as long as that of the leading product. In order to test the clalm, a researcher samples 45 unlts of the new phone and finds that the gample battery lfe averages 10.5 hours with...
A phone manufacturer wants to compete in the touch screen phone market. He understands that the lead product has a battery life of just 5 hours. The manufacturer claims that while the new touch screen phone is more expensive, its battery life is more than twice as long as that of the leading product. In order to test the claim, a researcher samples 45 units of the new phone and finds that the sample battery life averages 10.5 hours with...
In a clinical trial, 25 out of 857 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 2.4% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.4% of this drug's users experience fiulike symptoms as a side effect at the a=0.05 level of significance? Because np. (1-Po) - 10. the sample size is 5% of the population size, and the sample the requirements...
10.2.17 Homework Help!
In a clinical trial, 18 out of 846 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience flulike symptoms as a side effect at the a = 0.01 level of significance? Because npo (1-P) = 15 > 10, the sample size is less than 5%...
In a clinical trial, 18 out of 840 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of Puike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience fiulike symptoms as a side effect at the a= 0.05 level of significance? Because np. (1-P) O10, the sample size is 5% of the population size, and the sample the requirements...
In a clinical trial, 18 out of 853 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.8% of this drug's users experience flulike symptoms as a side effect at the a = 0.01 level of significance? Because npo (1 - Po) 10, the sample size is 5% of the population size, and the...
Most questions answered within 3 hours.
-
1. In a labor market, marginal cost for a firm is
____________.
a. recruiting cost
b....
asked 9 minutes ago -
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 34 minutes ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 1 hour ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 2 hours ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 3 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 3 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 3 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 3 hours ago -
2. An AC generator has 80 rectangular loops on
its armature. Each loop is 11 cm...
asked 3 hours ago -
Please help me with this question. Consider Aldi’s current and
potential geographic markets (see Exhibit 4...
asked 3 hours ago -
What are the main components of the fermentation process and
give an explanation of each? Include...
asked 3 hours ago -
Explain which types of cells in the body (belonging to which
organs, etc.) are sensitive to...
asked 3 hours ago