Claim: Fewer than
%
of adults have a cell phone. In a reputable poll of
adults,
%
said that they have a cell phone. Find the value of the test statistic.
The value of the test statistic is
.
(Round to two decimal places as needed.)
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Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 611 randomly selected adults showed that 65% of them would erase all of their personal information online if they could. Find the value of the test statistic.Question content area bottomPart 1The value of the test statistic is enter your response here.(Round to two decimal places as needed.)
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 135 adult males, the mean pulse rate is 68.5 bpm and the standard deviation is 10.6 bpm. Find the value of the test statistic.Question content area bottomPart 1The value of the test statistic is enter your response here.(Round to two decimal places as needed.)
The test statistic of z=−2.52 is obtained when testing the claim that p
The test statistic of z=−1.38 is obtained when testing the claim that p=1/2.a. Using a significance level of α=0.10, find the critical value(s).b. Should we reject H0 or should we fail to reject H0?Click here to view page 1 of the standard normal distribution table.LOADING...Click here to view page 2 of the standard normal distribution table.LOADING...Question content area bottomPart 1a. The critical value(s) is/are z=enter your response here.(Round to two decimal places as needed. Use a comma to separate answers...
Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1210 adults,88 % said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is
Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1179 adults, 89% said that they have a cell phone. Find the value of the test statistic.
Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1200 adults, 90% said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is _______ (Round to two decimal places as needed.)
Claim: Fewer than 98% of adults have a cell phone. In a reputable poll of 1122 adults, 89% said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is _______ (Round to two decimal places as needed.)
Claim: Fewer than 95% of adults have a cell phone. In a reputable poll of 1226 adults, 90% said that they have a cell phone. Find the value of the test statistic. The value of the test statistic is | (Round to two decimal places as needed.)
Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 630 randomly selected adults showed that 41% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below.Question content area bottomPart 1a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information.▼ sigmaσmuμpp▼ equals=less thanenter your response here(Type an integer or a...