Question: Can someone pls help 7 For a given data sample, an 80% confidence interval will be wider than an 90% confidence interval True O False

Can someone pls help

7 For a given data sample, an 80% confidence interval will be wider than an 90% confidence interval True O False 8 The confidence interval for a proportion must always be between 0 and 1, inclusive. - O True False 9 In real-world situations of trying to estimate a population mean, it is more realistic and common to NOT know a population standard deviation than it is to know the population standard deviation. O True False

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