A website advertises job openings on its website, but job seekers have to pay to access the list of job openings. The website recently completed a survey to estimate the number of days it takes to find a new job using its service. It took the last 35 customers an average of 50 days to find a job. Assume the population standard deviation is 10 days. Construct a 99% confidence interval of the population mean number of days it takes to find a job. Multiple Cholce 129.6180, 70.3820] [45.1265, 54.8735) [45.6390, 54.3610) [46.2146, 53.7854]

Q: One prominent physician claims that 80% of those with lung cancer are chain smokers. Compute the…

A: Here, we can consider that it is Binomial distribution because  80% of people has lung cancer and…

Q: Engineers must consider the breadths of heads when designing helmets. The company researchers have…

A: GivenMean(μ)=6.1standard deviation(σ)=1.6

Q: You measure 50 textbooks' weights, and find they have a mean weight of 71 ounces. Assume the…

A: We have given the following Sample mean = 71 Sample size = 50 Sample standard deviation = 3.8

Q: Suppose that the lengths of pregnancies are normally distributed with a mean of 274 days and a…

A: The provided information is  µ=274 σ=10 P(X>280) P(X-µσ>280-27410)=P(z>0.6000)=0.2743 (from…

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A: Given, In a medical study, a researcher wishes to select respondents in the middle of 45% of the…

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A: Average of a dataset is the mean value of the observations in the data and it is computed by…

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A:

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A: Answer: Using the given data, Sample size (n) = 38 Sample mean x¯ = 78 Population standard deviation…

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A:

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A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

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A: We have given that,  Sample mean (x̄) = 79, population standard deviation (σ) = 12.4 and sample size…

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A: The population is the set of all subjects of interest.

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A: The sample size: n=49 The sample mean: x¯=85 ounces The population standard deviation: σ=3.6 ounces…

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A: Given n=40 Xbar=71 Standard deviation=9.6

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A:

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A: It is given that the, There is a gambling casino that records and plots the mean daily gain or loss…

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A: