question archive The following four steps must be taken to perform a hypothesis test using the p-value approach:1
The following four steps must be taken to perform a hypothesis test using the p-value approach:1
Subject:StatisticsPrice: Bought3
The following four steps must be taken to perform a hypothesis test using the p-value approach:1. Calculate thep-value.2. Select the distribution to use.3. Make a decision.4. State the null and alternative hypotheses and determine the significance level.The correct order for performing these steps is:The mean IQ score of a sample of 62 students selected from a high school is 91. Suppose the standard deviation of IQ’s at this school is ? = 7.3. The 99% confidence interval for the population mean (rounded to two decimal places) is:The lower limit is The upper limit is A random sample of 115 customers, who visited a department store, spent an average of$72 at this store. Suppose the standard deviation of expenditures at this store is?=$18. The 98% confidence interval for the population mean (rounded to two decimal places) is:The lower limit is $The upper limit is $4, 2, 1, 32, 3, 1, 43, 2, 1, 44, 1, 2, 3A sample of size 112 from a population having standard deviation?= 7 produced a mean of 44. The 99% confidence interval for the population mean (rounded to two decimal places) is:The lower limit isThe upper limit isThe mean federal income tax paid last year by a random sample of 40 persons selected from a city was $4266. Suppose the standard deviation of tax paid in this city is ? = $722. The 95% confidence interval for the population mean (rounded to two decimal places) is:The lower limit is $The upper limit is $A researcher wants to test if the mean price of houses in an area is greater than $145,000. The alternative hypothesis for this example will be that the population mean is:greater than $145,000greater than or equal to $145,000equal to $145,000not equal to $145,000A researcher wants to test if elementary school children spend less than 30 minutes per day on homework. The alternative hypothesis for this example will be that the population mean is:equal to 30 minutesnot equal to 30 minutesless than 30 minutesless than or equal to 30 minutesThep-value is the:smallest significance level at which the alternative hypothesis can be rejectedlargest significance level at which the alternative hypothesis can be rejectedlargest significance level at which the null hypothesis can be rejectedsmallest significance level at which the null hypothesis can be rejectedFor a two-tailed test, the p-value is:the area under the curve between the mean and the observed value of the sample statistictwice the area in the tail under the the sampling distribution curve beyond the observed value of the sample statistictwice the area under the curve between the mean and the observed value of the sample statisticthe area in the tail under the sampling distribution curve beyond the observed value of the sample statistic
